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Boot Selection Failed Because A Required Device Is Inaccessible Error in Windows 10

If you have or are currently getting a troublesome error saying, “The boot selection failed because a required device is inaccessible” when you boot your computer, then continue reading as this post will give you some suggestions that may help you resolve the error.

This pesky error pops up during the booting process of your computer and prevents you from booting to your Windows 10 PC and displays the error message on a black screen instead. To fix this problem, here are some suggestions you need to check out.

Option 1 – Try checking the boot order in BIOS

  • Turn on your PC and repeatedly tap the Setup key right away about once every second until you see the Computer Setup Utility or the BIOS settings.
  • Then use the right arrow key to select the Security menu and then use the down arrow key to select the Secure Boot Configuration option and then tap Enter.
  • Just a heads up, before you can use Secure Boot Configuration, a warning will pop up. Simply tap F10 to continue to the menu. After opening it, use the down arrow key to select Secure Boot and then the right arrow key to set the setting to Disable.
  • Next, select the Legacy Support option using the down arrow key and then the right key to set the setting to Enable.
  • Now tap F10 to confirm the changes and then use the arrow key to select File menu and then the down arrow key to select Save Changes and then Exit and tap Enter to select Yes. From there, your computer should restart and once it does, use the power button to switch it off.

If you are now able to boot from your hard drive, you need to know which option to choose once the boot menu pulls up. Refer to the steps below to easily boot from your hard drive.

  • Tap the power button to boot your PC. Once your PC starts, a message will appear indicating that the boot mode has now changed.
  • Next, you’ll see a security screen displaying a four-digit code. Type in this four-digit code and tap Enter.
  • After that, tap the power button to turn the computer off and wait for a couple of seconds and then turn your PC on and tap the ESC key right away repeatedly until you see the Startup menu.
  • Now tap F9 to open the Boot Menu and use the down arrow key to select the hard disk and make sure to select it by tapping Enter on your keyboard.
  • Restart your PC and check.

Option 2 – Try running the DSKCHK Check from the Recovery Media.

The DSKCHK utility scans your hard drive for any errors, bad files, or corrupt sectors so this should help in fixing the problem.

  • The first thing you need to do is to download the Media Creation Tool from Microsoft and then open it after the download. The file should be “MediaCreationTool.exe”.
  • Then tap Accept to agree to the terms and conditions and then from the initial screen, select the “Create installation media (USB flash drive, DVD, or ISO file) for another PC” option. Keep in mind that the language, architecture, and edition of the bootable drive will be selected based on your PC’s settings but you have to uncheck the Use the recommended options for this PC in order to choose the correct settings for your own computer that’s getting the error.
  • Now click Next and then click the USB drive or DVD option once prompted to select between USB or DVD depending on what device you are using to store this image on. Then click Next and select the required drivers from the list of storage devices currently connected to the computer.
  • Click Next. After that, the Media Creation Tool will proceed to download the files needed to install and create the installation device.
  • The next thing you have to do is to insert the installation drive.
  • After that, you will see the “Choose your keyboard layout” window so select the one you prefer and then the Choose an option screen will pop up.
  • Go to Troubleshoot > Advanced Options > Command Prompt. After opening Command Prompt, input the following command and hit Enter.

CHKDSK /R /X C:

  • Now boot your PC without the recovery drive and check if the problem’s fixed or not.

Option 3 – Try resetting the BIOS

  • Open the computer case and then look for the battery in the motherboard. If you can’t find it, you can seek out the motherboard or computer documentation of your PC as well as browse the web or contact the manufacturer for further assistance.
  • Removing the battery should be easy especially if your computer uses a coin cell battery. Just use your fingers to grab on the edge of the battery then pull it up and out of the socket that’s holding it in place.
  • Keep the battery removed for about 10 minutes and then insert it back and try booting into the BIOS.

Option 4 – Try using the Startup Repair

  • Inject the installation drive you created earlier and boot your PC.
  • Select the keyboard layout from the Choose your keyboard layout window.
  • From there, the Choose an option screen pops up. Navigate to Troubleshoot > Advanced Options > Startup Repair.

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Fix Windows Activation error code 0xC004F078
As you know, Windows 10 has a complicated mechanism for Activation which helps in the verification of a genuine copy of Windows 10. However, there are times when you might encounter some errors during the activation process. One of these errors is the error code 0xc000f074. This kind of error could be due to the Key Management Service or KMS which is unreachable by the client computer or if the key used in the SLSetAuthenticationData function call is incorrect. This kind of error mostly affects surfaces on computers that are upgraded from either Windows 7 or Windows 8.1 to Windows 10. In such cases, you may encounter any of the following error messages:
“Windows is unable to reach your company’s activation service. Please connect to your corporate network. If you are connected and continue to see the error, contact your system administrator. You can also click on the error detail to find the exact error. Error code: 0xC004F074.” “Activating Windows(R), (Key hash)… Error: 0xC004F074 The Software Licensing Service reported that the computer could not be activated. No Key Management Service (KMS) could be contacted. Please see the Application Event Log for additional information.” “Error 0xC004F074, SL_E_AUTHN_MISMATCHED_KEY, The Software Licensing Service reported that the key is mismatched.”
To fix the Windows 10 Activation error 0xC004F078, you have to use the correct key for your type of Windows copy or use Command Prompt to reinstall the key or you could also try running the Activation troubleshooter.

Option 1 – Try running the Windows 10 Activation Troubleshooter

The first thing you can do to resolve the Activation error code 0xc000f074 is to run the Windows 10 Activation Troubleshooter. To do so, follow these steps:
  • Go to Settings and then select Activation.
  • After that, click on the Windows Activation and then troubleshoot. This will help you address most of the commonly found activation issues in Windows devices.
The Windows 10 Activation Troubleshooter will determine if your license key is a valid Windows 10 digital license for an edition that is not currently installed. If it turns out that it’s not, then the troubleshooter will show you how to install the correct edition.

Option 2 – Try to use the correct key for the type of Windows version you have

If the Windows Activation troubleshooter wasn’t able to resolve the error, then you can try using the correct key for your type of Windows version. All you have to do so is check the type of your Windows copy if it’s OEM, retail, or volume. And make sure that you have the correct, valid product key for your operating system.

Option 3 – Try to use Command Prompt to reinstall the key

  • In the Start Search, type “command prompt” and right-click on Command Prompt from the search results, and then select “Run as administrator”.
  • After that, execute this command to uninstall the existing key: vbs /upk
  • Next, you need to install the KMS product key by executing this command: vbs /ipk <The KMS Product Key>
  • Once you’re done, you will see a prompt that’ll tell you whether the operation was either successful or not.
  • To active, the KMS product key online, use this command: vbs /ato
  • Use this command to activate the key using the telephone: exe 4
  • After you’ve activated the KMS product key, restart the Software Protection Service. You can also verify the Activation Status to check if your fix was successful or not.

Option 4 – Contact Microsoft Support for assistance

If you’re at your wits’ end in trying to upgrade your computer, you should consider contacting Microsoft Support for help as they can offer you various options that would make fixing Windows Activation error code 0xc000f074 a lot easier and faster.
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Fix PNP_DETECTED_FATAL_ERROR in Windows
If you suddenly encounter a PNP_DETECTED_FATAL_ERROR Blue Screen error, then this post can help you out. The PNP_DETECTED_FATAL_ERROR BSOD usually occurs when any new hardware that is mostly the Plug and Play type is attached. In such cases, when the device is plugged, and the driver for that device crashes or isn’t found or is not compatible, you will most likely encounter this particular BSOD error. There are several error codes that come under this category, some of them are 0x000000CA (0x01681690, 0xEA96A7BE, 0x938A81AD, 0xF8362881. This BSOD error can also occur at any time. However, the only constant thing here is when you plug a PNP device like earphones, microphones, USB drives, and many more. The PNP_DETECTED_FATAL_ERROR bug check has a value of 0x000000CA which indicates that the Plug and Play Manager encountered some severe error which is most likely have something to do with a problematic Plug and Play driver. To fix this error, here are some possible solutions that could help.

Option 1 – Run the Blue Screen Troubleshooter

The Blue Screen troubleshooter is a built-in tool in Windows 10 that helps users in fixing BSOD errors like PNP_DETECTED_FATAL_ERROR Blue Screen error. It can be found on the Settings Troubleshooters page. To use it, refer to these steps:
  • Tap the Win + I keys to open the Settings panel.
  • Then go to Update & Security > Troubleshoot.
  • From there, look for the option called “Blue Screen” on your right-hand side and then click the “Run the troubleshooter” button to run the Blue Screen Troubleshooter and then follow the next on-screen options. Note that you might have to boot your PC into Safe Mode.

Option 2 – Try disabling or removing newly installed hardware

In this option, you will have to disable or remove the hardware you’ve just installed recently since external devices could be the one that’s causing the Blue Screen of Death error to appear. To do that, just disconnect any external device that’s connected to your computer physically and then check if it fixes the PNP_DETECTED_FATAL_ERROR Blue Screen error.

Option 3 – Try disabling BIOS Memory options namely Caching Shadowing

Disabling the BIOS Memory options such as Caching and Shadowing can help you in fixing the PNP_DETECTED_FATAL_ERROR Blue Screen error. All you have to do is enter the BIOS first and then use the Arrow and Enter keys to select your choices. And if you can’t seem to find it, look for specific instructions from your OEM or you could also look out for instructions from the manufacturer of your motherboard.

Option 4 – Try to run the CHKDSK utility

Running the CHKDSK utility might also help you resolve the PNP_DETECTED_FATAL_ERROR Blue Screen error. If your hard drive has issues with integrity, the update will really fail as the system will think that it’s not healthy and that’s where the CHKDSK utility comes in. The CHKDSK utility repairs hard drive errors that might be causing the problem.
  • Open Command Prompt with admin privileges.
  • After opening Command Prompt, execute the following command and hit Enter:
chkdsk /f /r
  • Wait for the process to be completed and then restart your computer.

Option 5 – Try to uninstall programs you’ve installed recently

Chances are, some programs that you just installed might be the one that’s causing the BSOD error. Thus, you need to uninstall the program to resolve the problem.
  • In the search box, type in “control” and then click on Control Panel (desktop app) among the search results.
  • After that, select Programs and Features from the list which will give you a list of all the programs installed on your computer.
  • From there, look for the concerned program and select it and then uninstall it.

Option 6 – Update the Device drivers

  • Tap the Win + R keys to launch Run.
  • Type in devmgmt.msc into the box and tap Enter or click OK to open the Device Manager.
  • After that, a list of device drivers will be displayed. Look for the device driver you and then select either “Update driver” or “Uninstall device”. And if you find any “Unknown device”, you need to update it as well.
  • Select the “Search automatically for updated driver software” option and then follow the instructions to complete the process.
  • If you have chosen to uninstall the driver, follow the screen options to complete the process and then restart your PC.
  • Connect the device and Scan for hardware changes – you can see this option under Device Manager > Action.

Option 7 – Perform a System Restore

Performing System Restore might help you in fixing the PNP_DETECTED_FATAL_ERROR Blue Screen error. You can do this option either by booting into Safe Mode or in System Restore. If you are already in the Advanced Startup Options, just directly select System Restore and proceed with the next steps. And if you have just booted your PC into Safe Mode, refer to the steps below.
  • Tap the Win + R keys to open the Run dialog box.
  • After that, type in “sysdm.cpl” in the field and tap Enter.
  • Next, go to the System Protection tab then click the System Restore button. This will open a new window where you have to select your preferred System Restore point.
  • After that, follow the on-screen instructions to finish the process and then restart your computer and check if the problem is fixed or not.
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Android malware spies while posing as a Update
New malware with extensive spyware capabilities steals data from infected Android devices and is designed to automatically trigger whenever new info is read to be exfiltrated. The spyware can only be installed as a 'System Update' app available via third-party Android app stores as it was never available on Google's Play Store. This drastically limits the number of devices it can infect, given that most experienced users will most likely avoid installing it in the first place. The malware also lacks a method to infect other Android devices on its own, adding to its limited spreading capabilities. However, when it comes to stealing your data, this remote access trojan (RAT) can collect and exfiltrate an extensive array of information to its command-and-control server. Zimperium researchers who spotted it observed it while "stealing data, messages, images and taking control of Android phones."

What happens when malicious software is installed

"Once in control, hackers can record audio and phone calls, take photos, review browser history, access WhatsApp messages, and more," they added. Zimperium said its extensive range of data theft capabilities includes:
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  • Stealing instant messenger database files (if the root is available);
  • Inspecting the default browser's bookmarks and searches;
  • Inspecting the bookmark and search history from Google Chrome, Mozilla Firefox, and Samsung Internet Browser;
  • Searching for files with specific extensions (including .pdf, .doc, .docx, and .xls, .xlsx);
  • Inspecting the clipboard data;
  • Inspecting the content of the notifications;
  • Recording audio;
  • Recording phone calls;
  • Periodically take pictures (either through the front or back cameras);
  • Listing of the installed applications;
  • Stealing images and videos;
  • Monitoring the GPS location;
  • Stealing SMS messages;
  • Stealing phone contacts;
  • Stealing call logs;
  • Exfiltrating device information (e.g., installed applications, device name, storage stats).

How does it work?

Once installed on an Android device, the malware will send several pieces of info to its Firebase command-and-control (C2) server, including storage stats, the internet connection type, and the presence of various apps such as WhatsApp. The spyware harvests data directly if it has root access or will use Accessibility Services after tricking the victims into enabling the feature on the compromised device. It will also scan the external storage for any stored or cached data, harvest it, and deliver it to the C2 servers when the user connects to a Wi-Fi network. Unlike other malware designed to steal data, this one will get triggered using Android's contentObserver and Broadcast receivers only when some conditions are met, like the addition of a new contact, new text messages, or new apps being installed. "Commands received through the Firebase messaging service initiate actions such as recording of audio from the microphone and exfiltration of data such as SMS messages," Zimperium said. "The Firebase communication is only used to issue the commands, and a dedicated C&C server is used to collect the stolen data by using a POST request."

Camouflage

The malware will also display fake "Searching for the update.." system update notifications when it receives new commands from its masters to camouflage its malicious activity. The spyware also conceals its presence on infected Android devices by hiding the icon from the drawer/menu. To further evade detection, it will only steal thumbnails of videos and images it finds, thus reducing the victims' bandwidth consumption to avoid drawing their attention to the background data exfiltration activity. Unlike other malware that harvests data in bulk, this one will also make sure that it exfiltrates only the most recent data, collecting location data created and photos taken within the last few minutes. If you would like to read more helpful articles and tips about various software and hardware visit errortools.com daily.
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Guide How to Remove PCOptimizerPro

PC Optimizer Pro is a PC optimizer utility developed by Xportsoft Technologies. It is classified as a potentially unwanted program, due to its aggressive scan and registration reminders, and that it is often distributed bundled with other programs in a manner that leads many users to not know how it got on their computer. While not inherently malicious, PC Optimizer Pro adds numerous registry keys, startup entries and while running consumes a relatively high amount of system resources, especially during its scans. The software installs from a .exe file that is around 5.20 MB or 5.453.240 Bytes (depending on the version). As of the publication of these videos, the current version of PC Optimizer Pro was detected as malicious or potentially unwanted by at least 21 AntiViruses.

About Potentially Unwanted Applications

If you have ever installed freeware or shareware, chances are high that your computer can get installed with a bunch of unwanted applications. A Potentially Unwanted Program, also called PUP, in short, is actually software that contains adware, installs toolbars, or has other hidden goals. These kinds of programs are almost always bundled up with free software which you download from the net or are also bundled within the custom installers on many download sites. PUPs did not really constitute pure “malware” in the strict sense of the term. Just like malicious software, PUPs cause problems when downloaded and installed on your PC, but what makes a PUP different is that you give consent to download it – although the truth is vastly different – the software installation package actually tricks you into accepting the installation. Irrespective of whether it is regarded as malware or not, PUPs are nearly always harmful to the user as they might bring on adware, spyware, keystroke logging, and also other bad crapware features on your computer.

What do PUPs do on your computer, exactly?

Potentially Unwanted Programs come in many forms and varieties, but in most instances, these are adware programs that show annoying pop-up adverts and advertisements on websites you check out. The PUPs also get installed into your computer in the form of web browser add-ons and toolbars. Not only they needlessly take up space on your computer screen, but toolbars may also manipulate search engine results, watch your web browsing activities, decrease your web browser’s efficiency, and decelerate your internet connection to a crawl. Potentially Unwanted Programs at times act quite similarly to viruses or spyware. Some PUPs include keyloggers, dialers, along with other software to gather your private details that may result in identity theft. These are programs that don’t do anything good for you; in addition to taking over space on your hard drive, they also slow down your computer, often modify settings without your approval, the list of bothersome features goes on.

Ways to avoid PUPs

• Always study the EULA and privacy statement. Don’t agree until you know precisely what you are acknowledging. • Choose the “custom” install whenever installing a software program. In particular, look closely at those small boxes that have been checked as default, where you may ‘agree’ to receive promotions or install software bundlers. • Use good antivirus software, like Safebytes Anti-Malware that offers real-time protection against PUPs. • Avoid adding a freeware program you do not use. Turn off or remove toolbars and web browser extensions you don’t really need. • Always download software from reliable sources like official sites as opposed to untrustworthy sharing space. Avoid file-hosting sites where/when possible.

What you can do if Malware Prevents You From Downloading Or Installing Antivirus?

Practically all malware is bad, but certain types of malware do much more damage to your computer than others. Certain malware goes to great lengths to stop you from downloading or installing anything on your personal computer, particularly antivirus applications. If you are reading this right now, you have probably recognized that a malware infection is the real cause of your blocked web connectivity. So what to do if you need to install an antivirus program like Safebytes? There are a few steps you can take to circumvent this problem.

Install in Safe Mode

The Windows OS has a special mode known as “Safe Mode” in which just the bare minimum required programs and services are loaded. In the event the malware is blocking the internet connection and affecting the computer, running it in Safe Mode will let you download antivirus and run a diagnostic scan while limiting possible damage. To start the computer into Safe Mode, press the “F8” key on your keyboard right before the Windows boot screen comes up; Or right after normal Windows boot up, run MSConfig, look over “Safe Boot” under Boot tab, and click Apply. After you reboot into Safe Mode with Networking, you can download, install, and update anti-malware software from there. Right after installation, run the malware scanner to remove standard infections.

Switch to an alternate browser

Some malware may target vulnerabilities of a specific browser that block the downloading process. If you seem to have malware attached to Internet Explorer, then switch over to an alternate web browser with built-in safety features, such as Firefox or Chrome, to download your favorite antivirus program – Safebytes.

Install and run anti-virus from the USB drive

Another solution is to create a portable anti-malware program on your USB stick. Adopt these measures to employ a thumb drive to clean your infected computer system. 1) Download Safebytes Anti-Malware or MS Windows Defender Offline onto a clean PC. 2) Plug the Thumb drive into the clean computer. 3) Run the setup program by double-clicking the executable file of the downloaded software, with a .exe file format. 4) Choose the flash drive as the location for saving the file. Do as instructed on the screen to complete the installation process. 5) Now, plug the pen drive into the corrupted computer. 6) Double-click the anti-malware software EXE file on the USB flash drive. 7) Press the “Scan” button to run a full system scan and remove viruses automatically.

SafeBytes Anti-Malware: Lightweight Malware Protection for Windows PC

These days, an anti-malware tool can protect your computer from different types of online threats. But how to choose the best one amongst numerous malware protection application that’s available out there? You may be aware, there are numerous anti-malware companies and tools for you to consider. A few are well worth your money, but many aren’t. You have to be very careful not to choose the wrong application, especially if you buy a paid application. In terms of commercial anti-malware application options, many people select well-known brands, such as SafeBytes, and are quite happy with it. SafeBytes anti-malware is a powerful, highly effective protection tool created to help end-users of all levels of IT literacy in detecting and eliminating malicious threats from their computer. Using its cutting-edge technology, this software can assist you to eliminate several types of malware such as computer viruses, trojans, PUPs, worms, ransomware, adware, and browser hijackers. SafeBytes has excellent features when compared to other anti-malware programs. Let’s have a look at a few of them below: Robust, Anti-malware Protection: Safebytes is made on the best virus engine within the industry. These engines will find and get rid of threats even during the initial phases of a malware outbreak. Active Protection: Malware programs aiming to enter the system are discovered and stopped as and when detected by the SafeBytes active protection shields. It’ll check your PC for suspicious activity at all times and safeguards your personal computer from unauthorized access. High-Speed Malware Scanning Engine: SafeBytes’s high-speed malware scanning engine minimizes scan times and extends the life of the battery. Simultaneously, it will effectively detect and eliminate infected computer files or any online threat. Website Filtering: SafeBytes checks the hyperlinks present on a webpage for possible threats and informs you whether the site is safe to explore or not, through its unique safety rating system. Lowest CPU/Memory Usage: SafeBytes is a lightweight and user-friendly antivirus and antimalware solution. Since it utilizes negligible computer resources, this tool leaves the computer’s power exactly where it belongs to: with you. Premium Support: You may get high levels of support round the clock if you’re using their paid software.

Technical Details and Manual Removal (Advanced Users)

If you wish to manually remove PCOptimizerPro without the use of an automated tool, it may be possible to do so by removing the program from the Windows Add/Remove Programs menu, or in cases of browser extensions, going to the browsers AddOn/Extension manager and removing it. You will likely also want to reset your browser. To ensure the complete removal, manually check your hard drive and registry for all of the following and remove or reset the values accordingly. Please note that this is for advanced users only and may be difficult, with incorrect file removal causing additional PC errors. In addition, some malware is capable of replicating or preventing deletion. Doing this in Safe Mode is advised.

The following files, folders, and registry entries are created or modified by PCOptimizerPro

Files: DesktopPC Optimizer Pro.lnk. %Programs%PC Optimizer ProLive Support.url. %Programs%PC Optimizer ProPC Optimizer Pro.lnk. %Programs%PC Optimizer ProUninstallation Guide.url. %Programs%PC Optimizer ProVisit Website.url. %ProgramFiles%PC Optimizer ProPCOptimizerPro.exe. %ProgramFiles%PC Optimizer ProPCOptProCtxMenu.dll. %ProgramFiles%PC Optimizer ProPCOptProTrays.exe. %ProgramFiles%PC Optimizer ProStartApps.exe. %ProgramFiles%PC Optimizer Prouninst.exe. %QuickLaunch%PC Optimizer Pro.lnk. WindowsTasksPC Optimizer Pro Idle.job. WindowsTasksPC Optimizer Pro Scan.job. WindowsTasksPC Optimizer Pro startups.job. WindowsTasksPC Optimizer Pro Updates.job. C:DOCUME1USER1LOCALS1Tempoptprosetup.exe C:WINDOWSsystem32netmsg.dll C:DOCUME1USER1LOCALS1Tempoptprosetup.exe C:DOCUME1USER1LOCALS1Tempis-SJGJ9.tmpoptprosetup.tmp C:DOCUME1USER1LOCALS1Tempis-NTRVH.tmp_isetup_shfoldr.dll C:WINDOWSsystem32shfolder.dll C:DOCUME1USER1LOCALS1Tempis-NTRVH.tmpOptProHelper.dll C:DOCUME1USER1LOCALS1Tempis-NTRVH.tmpitdownload.dll C:1e4e2d65e12311cac2c0eeb8c5c1d7bd1ddc865b367b98b56bc2330bf18436 C:WINDOWSRegistrationR000000000007.clb C:DOCUME1USER1LOCALS1Tempoptprosetup.exe C:WINDOWSsystem32shfolder.dll C:1e4e2d65e12311cac2c0eeb8c5c1d7bd1ddc865b367b98b56bc2330bf18436 C:WINDOWSRegistrationR000000000007.clb C:WINDOWSsystem32shell32.dll C:DOCUME1USER1LOCALS1Tempis-SJGJ9.tmpoptprosetup.tmp C:Program FilesOptimizer Pro 3.99OptimizerPro.exe C:Program FilesOptimizer Pro 3.99unins000.exe C:Program FilesOptimizer Pro 3.99OptProStart.exe c:autoexec.bat C:DOCUME1USER1LOCALS1Tempoptprosetup.exe C:DOCUME1USER1LOCALS1Tempis-SJGJ9.tmpoptprosetup.tmp C:DOCUME1USER1LOCALS1Tempis-NTRVH.tmp_isetup_shfoldr.dll C:DOCUME1USER1LOCALS1Tempis-NTRVH.tmpOptProHelper.dll C:DOCUME1USER1LOCALS1Tempis-NTRVH.tmpitdownload.dll C:Program FilesOptimizer Pro 3.99is-BDCDJ.tmp C:Program FilesOptimizer Pro 3.99is-DB4S5.tmp C:Program FilesOptimizer Pro 3.99is-C16E7.tmp C:Program FilesOptimizer Pro 3.99is-QE691.tmp C:Program FilesOptimizer Pro 3.99is-GQ78C.tmp Registry: Key 003B9C22-6FE0-4BCA-A73F-9AA99B9BBDAA at HKEY_CLASSES_ROOTTypeLib. Key 12AB121E-44C6-488B-8773-B0AE25E662E1 at HKEY_CLASSES_ROOTInterface. Key 203ABD21-41F1-4F1B-BAE3-D6A89A90D239 at HKEY_CLASSES_ROOTCLSID. Key PC Optimizer Pro at HKEY_CURRENT_USERSoftware. Key PC Optimizer Pro at HKEY_LOCAL_MACHINESOFTWARE. Key PC Optimizer Pro at HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionUninstall. Key PCOptimizerPro.exe at HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionApp Paths. Key PCProCtxMenu at HKEY_CLASSES_ROOT*shellexContextMenuHandlers. Key PCProCtxMenu at HKEY_CLASSES_ROOTlnkfileshellexContextMenuHandlers.
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How to Fix Windows 10 Error Code 0x803f7001

Error Code 0x803f7001 – What is it?

Error code 0x803f7001 occurs when there is a failure to update your Windows operating system to Windows 10. Usually, a message box pops up with the following statement, “Windows is not activated as your previous version of Windows on this device was not activated prior to upgrade to Windows 10.” When this occurs, common symptoms of the error code will manifest themselves:

  • Inability to upgrade your Windows operating system to Windows 10
  • Message box with error code 0x803f7001

Solution

Restoro box imageError Causes

The cause for error code 0x803f7001 varies. Usually, it occurs for two reasons: 1) when during the process of upgrading to Windows 10, no valid Windows license or product key is found for your device or 2) when a user performs a clean installation of Windows 10. During a clean installation, a new license is usually required to allow you to activate your copy of Windows.

Further Information and Manual Repair

There are two main options available to fix error code 0x803f7001. Usually, the use of a valid product key can help users rectify error code 0x803f7001. You may also try an automated tool to access the best solutions.

Method One: Use a Valid Product Key

A product key is a code containing 25 characters that enable users to activate Windows. You will need to enter the product key in the exact order it appears in order to install your Windows operating system. All users will be able to access this code in an email or on a card within the Windows DVD package they receive upon purchasing a version of the Windows operating system.

To solve error code 0x803f7001, complete the following steps.

  • Step one: Click the Start button then select Settings
  • Step two: Select Update and Security then Activation
  • Step three: Click the Change product key
  • Step four: Type in your valid product key. (To do this ensure the 25 characters are accounted for and in the correct order.)

If the issue causing error code 0x803f7001 relates to your product key, then the instructions within method one will rectify the issue. You will be able to install and activate Windows 10. However, if while attempting to update your Windows operating system, the error occurs once more, you will need to follow the instructions in the manual repair below.

You may also consider contacting a Windows repair technician if you are uncertain of your ability to perform the tasks required to fix error code 0x803f7001. This IT professional will be able to use his or her technical knowledge to perform complex manual repair tasks if the need arises.

Method Two: Install an Automated Tool

Automated tools help PC users eliminate common issues such as Windows error codes. To address or rectify error codes like error code 0x8007007b download a powerful automated tool on your machine. This tool enables users to access quick solutions. It also scans for and corrects issues that may result in error codes or poor PC performance.

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What to do when you can't format SD card
SD memory cards have surfaced as standard cards for digital cameras and microSD as phone standard memory cards. Most people have and use at least one daily, so naturally copying files and even formatting SD cards is a natural thing to do, but what if you cannot copy files or format SD cards? SD cardsFear not because we had this issue and tried several things in order to overcome the problem and after some time here is a list of what can you do if you are facing this exact issue. The list is written from most simple solutions to more complex ones and it is advisable to follow it as presented. That being said, let's dive into solving the problem.

1. Remove Write Protection on SD card

First and in my experience the most usual thing preventing deleting, copying files, and formating SD card is due to write protection. Take an SD card out of the laptop, camera, or card reader and visually inspect it. On side of almost every SD card, there is a hardware lock switch and mark where it needs to be positioned in order to be locked. Even if the switch is positioned on unlocked state, switch it to locked and then back to unlocked. Sometimes this easy moving of switch can resolve some contact issues and the card will start working normally. Another type of lock that could be turned ON is a software one. If for any kind of reason data protection has been turned ON, you will need to turn it off in order to be able to format an SD card. In order to do this follow this guide:
  1. Press ⊞ WINDOWS + R to open the Run dialog
  2. In run dialog type in diskpart and press ENTER
  3. Once diskpart is opened in command prompt type in: list disk and press ENTER
  4. Locate your SD card and type in select disk x, where x is disk number followed by ENTER
  5. After the SD card is selected type in: attributes disk clear read-only and press ENTER
This process will clear the software lock on the SD card, after following this method try to format the card again, if the problem still exists go to the next solution.

2. Format SD card using Command prompt

Command prompt is a great tool and can perform some commands that are not been able to be completed using file explorer or another tool inside Windows.
  1. In the taskbar search box, search for cmd and select the Command prompt
  2. On the right part select run as administrator
  3. If needed click on YES on UAC prompt
  4. Inside command prompt type in diskpart and press ENTER
  5. type in list disk followed by ENTER
  6. Select your SD card by locating its number in the list and typing select disk X, where is X SD cards number in list and press ENTER
  7. Once SD card is selected type in format fs=ntfs quick and press ENTER
This should format SD card but if for reason even this step is provided as unproductive, go to the next solution.

3. Format your card with the Disk Management tool

  1. Go into the taskbar and search for Disk Management and open it
  2. Select SD card partition that you wish to format
  3. Right-click on the partition and select format
  4. After the format is done, enter the volume label, file system, and allocation unit size. Confirm with OK
  5. Press OK again to confirm the formatting process.
If you have not managed to format your SD card even with this method go to the next solution.

4. Repartition card with Disk part

If all previous solutions have failed there is a chance that the SD card has bad sectors on it. If this is the case that we will need to partition cards in order to isolate bad sectors and use healthy ones.
  1. Press ⊞ WINDOWS + R to open the Run dialog
  2. In run dialog type in diskpart and press ENTER
  3. Once diskpart is opened in command prompt type in: list disk and press ENTER
  4. Locate your SD card and type in select disk x, where x is disk number followed by ENTER
  5. Type in Clean and press ENTER
  6. Type in Create partition primary and press ENTER
  7. To select a new partition type select partition 1 followed by ENTER
  8. Make partition active by typing active and pressing ENTER
  9. Format the drive by typing format fs=ntfs label=SDCard quick followed with ENTER
  10. Assign a letter to drive by typing assign letter=h followed with ENTER
  11. Type exit to close Command prompt followed again by ENTER and open File Explorer to check if the drive is active

5. Try a dedicated SD card formating fool

If anything failed so far, one last thing you could do is to download and try a dedicated SD card formatting tool. One that I would recommend is SD Memory Card Formatter, which is free software make specifically for formatting SD memory cards.
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A Guide to Fixing Error 0x8007007e on Windows 10

Error Code 0x8007007e – What is it?

Error code 0x8007007e often occurs when users attempt to use Windows Update but are unable to access updates or webpages. To resolve this issue, you will need to use tools that detect and correct corrupted files as this is usually the main reason for the error.

Solution

Restoro box imageError Causes

Once this error code is encountered, it's a clear indication that your Operating System has malfunctioned. This could be a consequence of an incorrect or failed installation of software. The software might leave invalid entries in the Windows registry. Improper shut down of your system and a malware attack are also causes of error code 0x8007007e. Additionally, someone with little or no technical knowledge might have deleted a system file by accident. Missing system files can also equate to other error codes such as registry error code 19.

You may not always be able to prevent issues from affecting your computer, but proper measures can be taken to limit your risk of experiencing problems like error code 0x8007007e. See the following suggestions below:

  • Ensure proper system maintenance by regularly using your automated tool. This will ensure your system is in good shape and error-free. It will also clean your system regularly leading to a boost in PC performance
  • Keep antivirus software up-to-date. Antivirus software if crucial for the proper functioning of your computer. Keeping your antivirus updated is one of the best ways you can avoid problems with your PC.

Further Information and Manual Repair

Method One: System File Checker

System File Checker is a Windows tool that allows users to check their system for corrupt or bad system files. The utility scans for corrupt files and repairs them as well as files that may have gone missing.

Depending on the type of Windows operating system on your computer, you may need to follow varying instructions. However, note that Windows operating systems including Windows 10 and Windows 8 or 8.1 and Windows Vista all provide access to System File Checker via Command Prompt.

Once you run System File Checker, the tool should be able to repair and replace corrupted files. However, in cases where the repair process does not take place, you can attempt a manual repair by replacing the corrupt file the tool identifies with a good file. The process may require technical knowledge of Command Prompt so consider help from a Windows repair technician or consider contacting Windows for instructions based on your computer’s operating system.

Method Two: Run System Restore Tool

The System Recovery Options menu in Windows contains many tools which can enable users to resolve serious errors. In the case of Error Code 0x8007007e, one of the best tools in this menu is System Restore.

When an error occurs which inhibits users from accessing key functions on their system, System Restore enables the user to restores the computer to an earlier period without causing harm to files, photos, or documents.

However, once you run this tool, you will only be able to access files available within the period to which your computer is restored. For this reason, carefully consider which period is best suited to your purposes. Also, ensure you restore the system to a time when error code 0x8007007e was not present on your machine.

If System Restore does not resolve the error, you may undo the restoration changes. Ensure you have sufficient free space on your machine hard disk before you proceed (300 MB at least for hard drives above 500MB or at least 50 MB for smaller sized disks).

Method Three: Download Automated Software

When it comes to resolving error codes, it can often be a frustrating and tricky venture, especially when you are attempting to fix the problem manually. The Internet is awash with bits and pieces of instruction, some misleading at best with uncertain success rates.

But what if there was a one-stop-shop or better yet a tool that offered solutions for error codes including 0x8007007e?  Download a powerful automated tool that offers easy and effective, user-friendly solutions for users with varying error code problems.

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Enable or disable Full-screen optimizations
In case you don’t know, there is a feature in Windows 10 computers that allows them to function a lot better. This feature is called Full-Screen optimization and it is enabled by default for several applications such as games and video players. If enabled, the Full-Screen optimization feature enhances the video playback and gaming by simply putting the CPU and GPU process as a priority. However, there are times when it can also result to a drop in the frame rate or FPS while in full-screen mode. And of course, the obvious solution to this dilemma is by disabling the Full-Screen optimization feature which is why Microsoft took action and removed this feature themselves in the recent Windows 10 Update releases. However, there is another way for you to enable it back or disable it yourself if you haven’t installed the recent updates yet and there are plenty of ways you can do both. All you have to do is follow the options given below carefully.

Option 1 – Try using Windows 10 Settings

If you haven’t installed the recent updates yet and all you have are the earlier releases, then this method would suit you.
  • Open the Windows 10 Settings app.
  • Next, navigate to System > Display > Graphics Settings or Advanced graphics settings.
  • From there, uncheck the “Enable Fullscreen optimization” option if you want to disable the feature, else just keep it checked.

Option 2 – Try using the Registry Editor

  • Tap the Win + R keys to open the Run dialog box and then type “Regedit” in the field and hit Enter to open the Registry Editor.
  • Afterward, if a User Account Control or UAC prompt appears, click on Yes.
  • Once the Registry Editor is pulled up, navigate to this registry key: HKEY_CURRENT_USERSystemGameConfigStore
  • Next, right-click on Explorer and select New > DWORD (32-bit) Value and then name it to “GameDVR_DSEBehavior and tap Enter to save it.
  • Now double click on the newly created GameDVR_DSEBehavior DWORD and set its value to “2” if you want to disable it, or “0” if you want to enable it.
  • Once you entered the value, close the Registry Editor and restart your computer to successfully apply the changes made.

Option 3 – Try running the application in Compatibility Mode

If the first two options didn’t work, the next thing you can do is to run the application in a Compatibility Mode. Follow the steps below to do so:
  • Go to the location of the application or game on which you need to disable or enable the Full-Screen optimization feature.
  • After that, right-click on it and select Properties.
  • Next, switch to the Compatibility tab where you can see the “Disable fullscreen optimization” option to disable the feature and vice versa.
  • Now click on the Apply and OK buttons to apply the changes made in the application’s settings.
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Facebook messengers alternatives
People are becoming more and more concerned with their privacy and Facebook's flagship messaging application is caught between it all. While still widely popular it has becoming to lose its ground due to many unanswered questions about privacy encryption. Lucky for all of us there are alternatives for more secure messaging.

SIGNAL

Arguably the most secure of all well-regarded messaging apps, Signal is the favorite of the European Commission, as well as newsrooms around the world. While Signal doesn’t disclose how many daily or monthly users the app has, Google’s Play Store says it has been installed more than 50 million times. While using Signal, each voice or video call connected through the app includes full end-to-end encryption. Signal takes an extra step by hiding message metadata so that the location of the original message is missing. While it asks for your mobile number, that number isn’t used with your profile. Instead, it acts as a numeric username. Once registered, you will find 1-1 chat, audio, and video calls, disappearing or “secret” chats, and a privacy lock so nobody can access the app even if they have your phone. Best of all, it’s completely free to use.

TELEGRAM

One of the biggest competitors to Facebook Messenger (and WhatsApp), Telegram is a very strong alternative. With more than 400 million users, it offers an interface that should feel right at home for anyone coming from Messenger. Telegram offers some huge benefits over Messenger, including features like groups that can hold up to 200,000 members for a chat. There is no limit on your media or chat size, and you can share all types of files between users and in groups. From a privacy standpoint, Telegram has robust security, but it is worth noting that only “secret” messages are end-to-end encrypted and can self-destruct. Non-secret messages can be stored on Telegram’s servers so you can pick them up between your devices quickly. That’s a consideration worth knowing prior to making Telegram your default Messenger replacement. Telegram is free across all platforms.

THREEMA

Rising in popularity, Threema is another privacy-focused alternative that has quickly become a competitor to Facebook Messenger. This paid service ($2.99 on both App Store and Play Store) is a pay-once, use forever option. Once you pay the small fee, you gain all of Threema’s touted privacy options, like open-source end-to-end encryption for both messages and calls. Like Signal, Threema won’t require you to link any phone numbers or emails to your account. All chats are handled anonymously, and the service generates a random user ID when you first open and register for the app. No data is collected from any of your chats and no ads are shown. The Swiss-made app does have its own servers hosted in Switzerland, which do not store any chat messages. Another privacy benefit of Threema is the notion that all of your contact lists, groups, and user profiles are hosted on your device, not on the Swiss servers. Because of that, Threema can once again state that none of your personal info is stored anywhere they have access.
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The server did not register with DCOM
There are times when after you upgrade your Windows operating system, the System Logs under the Event Viewer will display an error message saying, “Event ID 10010 error – The server did not register with DCOM within the required timeout”. What is DCOM? DCOM stands for “Distributed Component Object Model”. It is a proprietary Microsoft technology that allows the Component Object Model or COM software to communicate across a network. You can consider it as an extension of COM which is equipped with the capability of solving a couple of inherent problems related to the COM model to the better use over a network. COM is a tool that’s used for advanced configuration and troubleshooting in Windows 10. Developers usually use it to configure routine components and application behavior like participation in transactions and object pooling and so on. The Component Services needs the DCOM wire protocol in order to communicate with the Component Object Model components on other computers. By default, in a Windows-based system, the network computers are configured initially to enable DCOM. There are also some components in Windows that might require registering themselves with DCOM. However, if they fail to do so, you will encounter the “The server did not register with DCOM within the required timeout” error. To fix this, here are some suggestions you can check out.

Option 1 – Try to use the Component Services

  • Tap the Win + R keys to open the Run dialog box.
  • Then type “dcomcnfg” in the field and tap Enter to pull up Component Services.
  • Next, double click on the Computers folder located in the right pane and right-click on My Computer, and select the Properties option.
  • After that, switch to the COM Security tab under My Computer Properties and then go to the Access Permissions section.
  • From there, click the Edit Default button and in the new window that appears, apply the correct permission to objects under the Group or user names section.
  • Once you’re done, click OK and exit. This should fix the error.

Option 2 – Make sure that Function Discovery Resource Publication Properties Services is running

  • In the Cortana search box, type “services” and click on the Services icon to open the Services Manager. Alternatively, you can also tap the Win + R keys to launch the Run prompt and then type “services.msc” in the field and hit Enter to open the Services Manager.
  • Next, scroll down and look for the “Function Discovery Resource Publication” entry and double click on it.
  • Then switch to the General tab and from there, make sure that the Startup Type is set to “Manual (Triggered).
  • You also have to make sure that the service is running so if it’s not, just click on the Start button to start the service.
  • Now click on Apply to save the changes made.

Option 3 – Try resetting the default DCOM permissions

  • Tap the Win + R keys to open the Run dialog box.
  • Then type “dcomcnfg” in the field and tap Enter to pull up Component Services.
  • After that, expand Component Services > Computers and right-click on My Computer, and then select Properties.
  • Next, go to the Default Properties tab, and in the Default Distributed COM Communication Properties section, make sure that:
    • Default Authentication Level is set to Connect
    • Default Impersonation Level is set to Identify.
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