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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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Should you use the Faraday bag

Faraday bag is a new take on security and privacy for people using a lot of electronic devices and credit cards. So what is exactly a Faraday bag?

faraday bag

Faraday bag explained

Faraday bag is designed in the same manner as the Faraday cage which was invented by Michael Faraday, who was an English scientist who contributed to the study of electromagnetism and electrochemistry. His main discoveries include the principles underlying electromagnetic induction, diamagnetism, and electrolysis.

The idea of the Faraday cage is that anything inside a cage that is made of specific grid size is completely isolated from outside current and magnetic fields since the cage itself will pick up everything upon itself. This means that for example, a human could be inside a cage that is struck by lightning and be perfectly safe and fine.

This idea led to the Faraday bag design, which takes this concept and places a wiring pattern inside clothing in order to isolate all magnetic fields from the outside so your devices and cards are completely cut off from any kind of influence and electromagnetic waves. If the pattern and quality of material for the bag are good, you have a fully safe placeholder for your stuff.

Advantages of Faraday bag

The main advantages, of course, are the privacy and safety of mobile phones and credit cards from outside influences and this is why this bag has been designed in the first place. If the bag is designed properly your phone would not be able to be hacked nor accessed from any outside source, GPS tracking will also be disabled and your phone location will not be visible. Credit cards will also be completely safe from any malicious attack via wi-fi signals.

Disadvantages of bag

Well, the disadvantage of using this bag is a very simple one, since your phone is isolated from outside influence that will also mean that you will not be able to take messages or calls on it while it is in the bag. Notifications from the internet would also be disabled so it is security vs usability deal.

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Fix mfewfpk.sys, Epfwwfp.sys Errors in Windows
If you suddenly encounter a Blue Screen error that points out to either the mfewfpk.sys and epfwwfp.sys files, then this post might help. Both of these files are created by third-party software. The mfewfpk.sys file is created by the McAfee security software while the epfwwfp.sys is created by the ESET Antivirus. These files are residual files and sometimes it blocks upgrading Windows 10. Aside from blocking Windows 10 upgrade/update, these files can also cause a Blue Screen error after an upgrade which leaves your Windows 10 computer useless. When you get a Blue Screen error caused by any of these files, you will see an accompanying error message that states, “DRIVER IRQL NOT LESS OR EQUAL”. To fix this Blue Screen error, you can check out the suggestions laid out below but before you do that, you need to create a System Restore point first as it can help you undo any unwanted changes. In addition, make sure to also boot your computer into Safe Mode with Networking before you troubleshoot.

Option 1 – Try to remove the epfwwfp.sys file

You can try to remove the epfwwfp.sys file using Command Prompt. To do so, refer to the following steps:
  • Right-click on the Start button and click on Command Prompt (Admin) from the menu to open Command Prompt with admin privileges.
  • Next, type the following command and hit Enter to delete the epfwwfp.sys file:
DEL /F /S /Q /A “%systemroot%System32driversepfwwfp.sys”
  • After the scan is completed, restart your computer and see if it fixed the Blue Screen error.
Note: You can also use the ESET AV Remover tool to uninstall Eset security software to remove the epfwwfp.sys file.

Option 2 – Try to remove the mfewfpk.sys file

The same with the first option, you can remove the mfewfpk.sys file using CMD.
  • First, right-click on the Start button and click on Command Prompt (Admin) from the menu to open Command Prompt with admin privileges.
  • After, type the following command and hit Enter to delete the epfwwfp.sys file:
DEL /F /S /Q /A “%systemroot%System32driversmfewfpk.sys”
  • Once the scan is completed, restart your computer and see if it fixed the Stop error.

Note: You also have the option to remove the mfewfpk.sys file using McAfee Product Removal tool to uninstall the McAfee security software. All you have to do is download the McAfee Product Removal tool and run it and then follow the onscreen instructions to install it. Once it is installed, click on Next. After you select the radio button to agree to the terms of use, click on Next once again. Finally, restart your computer and check if it is able to resolve the problem or not.

Option 3 – Run the Blue Screen Troubleshooter

Troubleshooting Blue Screen of Death errors wouldn’t be complete without the Blue Screen troubleshooter. As you know, it is a built-in tool in Windows 10 that helps users in fixing BSOD errors. 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 4 – Try running the DISM tool

You can try running the Deployment Imaging and Servicing Management or DISM tool to fix the Blue Screen error. Using this built-in tool, you have various options such as the “/ScanHealth”, “/CheckHealth”, and “/RestoreHealth”.
  • Open the Command Prompt with admin privileges.
  • Then type in the following commands and make sure to hit Enter right after you type each one of them:
    • Dism /Online /Cleanup-Image /CheckHealth
    • Dism /Online /Cleanup-Image /ScanHealth
    • exe /Online /Cleanup-image /Restorehealth
  • Do not close the window if the process takes a while as it will probably take a few minutes to finish.
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Easy Methods of Fixing Error 1706

What is Error 1706?

Error 1706 is a Windows PC error. It occurs when you insert a Microsoft CD-ROM either to repair an Office or to install a feature set to Installed on First Use. The error message is displayed in the following format: Error 1706. Setup cannot find the required files. Check your connection to the network, or CD-ROM drive. For other potential solutions to this problem, see C:\Program Files\Microsoft Office\Office101033\Setup.hlp.

Solution

Restoro box imageError Causes

Error 1706 may occur due to several reasons. These include:
  • You originally installed MS Office from a network administrative installation
  • You are trying to use Office CD-ROM when the error is prompted by the Windows Installer for an Office source location
  • Viral Infection

Further Information and Manual Repair

The good news is that this error code is not fatal. However, to avoid inconvenience, it is recommended to resolve the error right away. To fix the problem you don’t have to be a computer programmer or hire one. In fact, this error code can be resolved quite easily. Here are some of the best and easiest do it yourself methods to resolve error 1706 on your PC:

Method 1

To resolve this issue find a different administrative installation for the Office source file location. To do this, go to the start menu and then click run. In the open box, simply type this command line new network pathSetup.exe /fvm package name.msi and press OK to continue and update changes. Once the update is complete and finished press OK to save and proceed. Please note after you follow these steps, the Windows Installer uses this new server location whenever it needs to reinstall, repair, or add a feature to your Office Installation.

Method 2

Another alternative method to resolve this method is to use CD-ROM for the Office Source Location. To do this you will have to remove Office and then re-install Office from the CD-ROM. Here are the steps to remove the Office program. First, quit all Office programs.
  1. Go to the Control Panel then click on the Program and Features option.
  2. Now double click the Add/Remove programs and remove the entry for the Microsoft Office 2003 or Microsoft Office XP product installed on your PC.
  3. After that, click on the Maintenance Mode Options dialog box, select Uninstall Office, and then click Next to proceed.
  4. Click Yes to confirm changes.
  5. Now insert Office 2003 or Office XP CD-ROM and follow the setup dialog boxes to reinstall the program on your system from CD-ROM.

Download Restoro to Correct Registry Errors

However, to ensure the installation is successful this time around, it is advisable to clean the registry and ensure the uninstalled program is not located in the registry. To do this, download Restoro and run it on your computer. This is a powerful PC Fixer integrated with a registry cleaner. The registry cleaner wipes out all the unnecessary files and uninstalled program files saved in the registry. Once the registry is cleaned, try reinstalling MS Office again. This will resolve the error 1706. Click here to download Restoro and repair error 1706.
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Fixing Windows 10 stuck at “Preparing Security Options”
There are cases when your Windows 10 PC can encounter an issue where it gets stuck and will display a message that says, “Preparing Security Options”. If this is happening to your Windows 10 PC, you won’t be able to use your keyboard or even mouse and your screen will only be stuck on the screen as mentioned above. As your computer is still stuck, you will be left with no choice but to shut it down and restart it. Tap the F11 key as soon as your PC powers on. This will take you to the Advanced Startup options where you can carry out some steps. If it still didn’t work, you have to boot your Windows 10 PC into Safe Mode and then try out the troubleshooting options below.

Option 1 – Try using System Restore

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.

Option 2 – Uninstall the Windows Updates you’ve installed recently

The issue could be caused by Windows Updates so you need to check if it’s indeed the case. The best way you can do so is via Safe Mode.
  • Boot your PC into Safe Mode and then tap the Win + I keys to open Settings.
  • After that, click on Update and Security and then select Windows Update from the left side menu column.
  • Next, select the “View installed update history” option on the right-side column and click on Uninstall Updates which will open a window that will show the list of all the installed updates on your PC.
  • From there, select the update you want to uninstall and click the Uninstall button located in the lower right corner of the window.

Option 3 – Try disabling the Fast Startup

  • Boot your PC into Safe Mode.
  • Then tap the Win + R keys to open the Run dialog box.
  • Next, type in “control” to open Control Panel.
  • After that, select Hardware and Sound and click on Power Options.
  • Select “Choose what the power buttons do” from the left side menu pane and click on Change settings that are currently unavailable.
  • Afterward, uncheck the “Turn on fast startup (Recommended)” entry and click on Save Changes.
  • Now restart your PC and check if the problem’s fixed.

Option 4 – Try running both the SFC scan and CHKDSK utility

You can do both SFC and CHKDSK using Safe Mode and Advanced Startup options. For Advanced Startup options, click on the Command Prompt option and proceed with the steps. And if you have booted your computer into Safe Mode, follow these steps:
  • Tap the Win + X keys or right-click on the Start button and click Command Prompt (admin).
  • After that, type in this command and tap Enter to run the System File Checker or SFC – “Sfc /scannow”.
  • Alternatively, you can use this command instead if the previous command didn’t work – “sfc /scannow /offbootdir=c: /offwindir=c:windows”.
  • Wait until the SFC scan is done with the process and then restart your PC.
  • Next, run the CHKDSK utility and once it’s done checking your disk for errors and then reboot your PC to save the changes made.

Option 5 – Try resetting Windows 10

You can reset your Windows 10 PC using either the Advanced Startup Options or by booting into Safe Mode.
  • Tap the Win + I keys and go to Update and Security > Recovery.
  • Then click on Get Started under the Reset this PC section.
  • After that, follow the on-screen instructions with how you want to reset your PC and what files and settings you want to revert.
  • Then it will reset your PC by reinstalling it

Option 6 – Try to rename the SoftwareDistribution folder

In this option, the Command Prompt is supposed to be like the one in option 4. You can use both ways there to open the Command Prompt.
  • Open an elevated Command Prompt as admin and type in the commands below and tap Enter right after you typed in each one of them
  • net stop wuauserv
  • net stop bits
  • rename c:windowsSoftwareDistribution SoftwareDistribution.bak
  • net start wuauserv
  • net start bits
Note: You can also rename the SoftwareDistribution folder to “SoftwareDistribution.bak” or “SoftwareDistribution.old” after you boot your PC into Safe Mode.

Option 7 – Try rebuilding BCD

Rebuilding the BCD can help you in fixing the stuck Windows 10.
  • You can start by booting into the installation environment for Windows 10 from an installation media.
  • After that, click on Repair your computer and on the blue screen, select Troubleshoot and then select the Advanced options menu.
  • Next, select Command Prompt and type in the commands below one by one, and tap Enter right after you do so.
  • exe /FixMbr
  • exe /FixBoot
    • exe /RebuildBcd

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SoftwareUpdater Malware Removal Guide

Software Updater is an ad-supported browser extension hijacker that claims to update your PC programs and drivers. In addition to managing the installation of your selected software, this install manager will make recommendations for additional free software that you may be interested in. Additional software may include toolbars, browser add-ons, game applications, anti-virus applications, and other types of applications. The hijacked homepage, softwareupdater.com, did not have valid legal privacy and disclaimer policies on its website as of publication date.

This software adds a Windows Task Scheduler in order to launch the program at various times, including system startup. The software has access to all installed applications on your PC and can install bundled products with unwanted malware. It is also commonly distributed in bundles with unwanted software. Several anti-virus programs have classified this software as malware and are therefore not recommended.

About Browser Hijackers

Browser hijacking means that a malicious code has control over and modified the settings of your internet browser, without your consent. They’re made to interfere with browser programs for several purposes. The idea is to force users to visit specific sites that are trying to increase their visitor traffic and produce higher ad revenue. It may appear harmless, but most of these sites are not legitimate and could present a severe threat to your online safety. Browser hijackers can even allow other malicious programs without your knowledge to further damage your computer.

How to determine if your web browser is hijacked

The common symptoms that indicate having this malicious software on your computer are: 1. home page is changed 2. you find new unwanted bookmarks or favorites added, typically directed to advertisement-filled or pornography websites 3. the default search engine has been changed and your browser security settings have been lowered without your knowledge 4. you find unwanted new toolbars added 5. you may find many pop-up ads on your computer screen 6. your internet browser has become unstable or starts running sluggishly 7. you can’t go to specific websites such as home pages of anti-malware software.

Exactly how browser hijacker infects computers

Browser hijackers infect PCs in numerous ways, including via a drive-by download, a file-share, or an infected email. Many web browser hijackings come from add-on software, i.e., browser helper objects (BHO), toolbars, or extensions added to web browsers to provide them additional functionality. Also, certain freeware and shareware can put the hijacker in your PC through the “bundling” technique. Some of the well-known hijackers are SoftwareUpdater, Conduit Search, Babylon Toolbar, OneWebSearch, Sweet Page, and CoolWebSearch. Browser hijackers may record user keystrokes to collect potentially valuable information leading to privacy issues, cause instability on systems, drastically disrupt user’s browsing experience, and eventually slow down the computer to a point where it will become unusable.

Browser Hijacker Malware – Removal

Certain hijackers could be removed by just uninstalling the related free software or add-ons through the Add or Remove Programs in the Windows Control Panel. In some cases, it can be a tough task to identify and get rid of the malicious piece because the associated file could be running as part of the operating system process. Besides, browser hijackers might modify the Computer registry so it can be extremely tough to fix manually, especially when you are not a very tech-savvy person.

How To Get Rid Of Malware That Is Preventing Anti-Malware Installation?

Malware can cause many different types of damage to PCs, networks, and data. Some malware is meant to restrict or prevent things that you want to do on your computer system. It may not permit you to download anything from the net or stop you from accessing some or all of the internet sites, especially the anti-virus websites. If you’re reading this now, you’ve perhaps recognized that a malware infection is a reason for your blocked internet traffic. So how to proceed if you need to install an anti-virus software like Safebytes? Even though this type of problem can be difficult to circumvent, there are a few actions you can take.

Install the anti-virus in Safe Mode

In Safe Mode, you can change Windows settings, un-install or install some software, and eliminate hard-to-delete viruses and malware. In the event, the virus is set to load immediately when PC boots, shifting into this particular mode can prevent it from doing so. To start the computer into Safe Mode, hit the “F8” key on your keyboard right before the Windows boot screen comes up; Or after normal Windows boot up, run MSCONFIG, check “Safe Boot” under Boot tab, and click Apply. As soon as you restart into Safe Mode with Networking, you could download, install, as well as update the anti-malware program from there. At this point, you could run the antivirus scan to remove viruses and malware without hindrance from another malicious application.

Switch to an alternate browser

Some malware only targets certain internet browsers. If this sounds like your situation, utilize another browser as it might circumvent the virus. The best solution to avoid this problem is to select a web browser that is well known for its security measures. Firefox contains built-in Malware and Phishing Protection to help keep you secure online.

Install and run anti-malware from your flash drive

To effectively remove the malware, you might want to approach the issue of running anti-virus software on the affected computer system from a different perspective. Adopt these measures to run the antivirus on the affected PC. 1) Download the anti-malware program on a virus-free PC. 2) Mount the USB drive onto the same computer. 3) Run the setup program by double-clicking the executable file of the downloaded application, which has a .exe file extension. 4) Pick a thumb drive as the place when the wizard asks you exactly where you want to install the program. Follow the on-screen instructions to complete the installation. 5) Disconnect the pen drive. You can now use this portable anti-malware on the infected computer. 6) Double-click the anti-malware program EXE file on the flash drive. 7) Run Full System Scan to detect and get rid of all types of malware.

Features of SafeBytes Anti-Malware

Want to install the best anti-malware software for your computer system? You can find many applications available that come in paid and free versions for Windows systems. Some of them do a great job in getting rid of threats while some will affect your PC themselves. You must be careful not to choose the wrong application, especially if you purchase a paid software. Among few good programs, SafeBytes Anti-Malware is the strongly recommended software for the security-conscious individual. SafeBytes anti-malware is really a powerful, highly effective protection application made to assist users of all levels of IT literacy in identifying and eliminating harmful threats from their computers. Through its cutting-edge technology, this software protects your PC against infections brought on by different types of malware and similar threats, including spyware, adware, computer viruses, worms, trojan horses, keyloggers, ransomware, and potentially unwanted program (PUPs). SafeBytes possesses a plethora of great features that can help you protect your laptop or computer from malware attack and damage. The following are some of the best ones: Real-time Active Protection: SafeBytes delivers complete and real-time security for your laptop or computer. They are very efficient in screening and getting rid of different threats because they are constantly revised with new updates and safety measures. Best AntiMalware Protection: This deep-cleaning anti-malware application goes much deeper than most antivirus tools to clean your personal computer. Its critically acclaimed virus engine finds and disables hard to remove malware that conceals deep inside your computer. Safe Browsing: SafeBytes gives an instant safety rating about the web pages you’re about to check out, automatically blocking unsafe sites and make sure that you’re certain of your online safety while browsing the net. Lightweight Tool: SafeBytes is a lightweight and easy-to-use antivirus and antimalware solution. As it uses minimal computer resources, this application leaves the computer’s power exactly where it belongs: with you actually. Premium Support: You may get absolutely free 24/7 technical support from their computer experts on any product queries or computer security issues.

Technical Details and Manual Removal (Advanced Users)

If you wish to manually remove SoftwareUpdater 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 SoftwareUpdater

Files: C:Program FilesSoftware UpdaterSoftwareUpdater.exe C:Program FilesSoftware Updatersuscan.exe C:Program FilesSoftware Updater C:Program FilesSoftware Updater cpprest120_xp_1_4.dll C:Program FilesSoftware Updater cpuidsdk.dll C:Program FilesSoftware Updater DriversHQ.SDK.REST.Win32.dll C:Program FilesSoftware Updater msvcp120.dll
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SYSTEM_THREAD_EXCEPTION_NOT_HANDLED CMUSBDAC.sys
If you encounter a Blue Screen error that points out to the CMUDA.sys, read on as this post will guide you in fixing it. The CMUDA.sys file is a Windows operating system driver file that is related to the USB Device Audio capabilities of a computer. There are times when this file causes Blue Screen error due to some conflicts in RAM or some incompatible firmware or hard disk issues, corrupted drivers or malware infection, and so on. There are various Blue Screen errors that are related to the CMUDA.sys file such as:
  • KMODE EXCEPTION NOT HANDLED
  • PAGE FAULT IN A NONPAGED AREA
  • IRQL NOT LESS OR EQUAL
  • SYSTEM THREAD EXCEPTION NOT HANDLED (CMUSBDAC.sys)
In most cases, the CMUDA.sys file usually triggers the SYSTEM_THREAD_EXCEPTION_NOT_HANDLED Blue Screen error. Although this Blue Screen error may seem complicated, its workarounds are straightforward so you won’t have any problems in following them.

Option 1 – Try to update or rollback your device drivers

If the first option didn’t work for you, then it’s time to either update or roll back the device drivers. It is most likely that after you updated your Windows computer that your driver also needs a refresh. On the other hand, if you have just updated your device drivers then you need to roll back the drivers to their previous versions. Whichever applies to you, refer to the steps below.
  • Open the Devices Manager from the Win X Menu.
  • After opening the Device Manager, locate the device drivers that are marked with a small yellow exclamation mark icon and right-click on each one to open their Properties. On the other hand, you can also look for sub-entries under Sound, video, and game controllers like the C-Media USB Audio Class
  • After that, switch to the Driver tab and click on the Uninstall Device button.
  • Follow the screen option to completely uninstall it.
  • Finally, restart your computer. It will just reinstall the device drivers automatically.
Note: You can install a dedicated driver on your computer in case you have it or you could also look for it directly from the website of the manufacturer. You can download the as C-Media USB Audio Class driver from the cmedia.com website.

Option 2 – Try to recreate the CMUDA.sys file

The first thing you can try is to recreate the CMUDA.sys file. Every time your Windows 10 PC boots up, it looks for all the system drivers in place and if it is unable to find them, it tries to create them. Which is why if you remove your corrupt driver file, chances are, you might get a fixed file recreated just for you. How? Refer to the steps below.
  • Boot your Windows 10 PC in Safe Mode.
  • Then open File Explorer and navigate to this location: C:/Windows/System32/drivers
  • From there, look for the file named sys and rename it to CMUDA.old.
Note: As you can see, the file’s extension has changed from .sys to .old.
  • Now restart your computer and check if the CMUDA.sys Blue Screen error is now fixed.

Option 3 – Run the Blue Screen Troubleshooter

The Blue Screen troubleshooter is a built-in tool in Windows 10 that helps users in fixing BSOD errors. 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.
  • After that, 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.
On the other hand, you can also try running the online Windows 10 Blue Screen troubleshooter from Microsoft. It is a wizard that could help you fix any Stop errors related to the CMUDA.sys file and will offer you helpful links as you use it.

Option 4 – Try running the DISM tool

You can try running the Deployment Imaging and Servicing Management or DISM tool to fix the Wdf01000.sys Blue Screen error. Using this built-in tool, you have various options such as the “/ScanHealth”, “/CheckHealth”, and “/RestoreHealth”.
  • Open the Command Prompt with admin privileges.
  • Then type in the following commands and make sure to hit Enter right after you type each one of them:
    • Dism /Online /Cleanup-Image /CheckHealth
    • Dism /Online /Cleanup-Image /ScanHealth
    • exe /Online /Cleanup-image /Restorehealth
  • Do not close the window if the process takes a while as it will probably take a few minutes to finish.

Option 5 – Run System Restore

Running System Restore might also help in fixing Blue Screen errors related to the CMUDA.sys file.
  • 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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How to use Windows maps offline
If you like to travel but you do not have a navigation device and a place where you are traveling does not have internet coverage do not worry, Windows offline maps are here to help. Traveling in today's world often requires that we have some sort of navigation system, wherever that be a dedicated navigation device, maps on your mobile phone, or something similar. Maps on mobile-phone are nice but they drain the battery of the phone fast and being on a road might require that we have access to our phone, just in case of an emergency call, and dedicated navigation devices often cost a lot of money. Lucky for us Windows comes with a maps feature where you can check local maps and orientate with their help and even if you are in an area where you do not have internet coverage you can still use maps via offline mas mode in Windows. This feature will require that you sacrifice little HDD space because you will need to download maps that you will need and some time preparing in order to find and download maps that you will need but in the end, it is worth it, you have a full map system completely offline and independent of the internet. So in order to prepare all maps that you will need, follow this guide step by step and enjoy your trip.
  1. Select Settings from the Start menu.
  2. Click System.
  3. Select Offline maps.
  4. Click the + button next to "Download maps".
  5. Select the continent where your desired country is located.
  6. Select the region you want to download. Depending on the area, you can download a whole country or you'll have to drill down to a smaller region (for example, with Canada and the USA).
  7. Repeat for any additional regions you want to have as offline maps. You can download more maps while other maps are currently downloading.
  8. Pack your bags
  9. GO!
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Four Proven Methods to Fix The Rundll Error

Rundll Error - What is it?

Rundll Error, DLL is also known as Dynamic Link Library is a Window library that basically consists of instructions and codes used and shared by multiple programs installed on your system. It helps programs load and run smoothly. Rundll error is generated when the system fails to access DLL files thereby hampering your ability to successfully run your desired program.

Solution

Restoro box imageError Causes

The rundll error code is triggered due to multiple reasons such as:
  • DLL file affected by virus and malware
  • Poor program installation
  • Invalid Windows registry entries
It is advisable to fix the run.dll error immediately without any delay because this error exposes your PC to serious threats such as system crash, freeze, failure, data loss, and even privacy threats like cybercrime, data breaches, and identity thefts.

Further Information and Manual Repair

To resolve the rundll error on your system, here are some solutions that you can try:

Solution 1: Reboot your System

Sometimes rebooting your system can also resolve the issue. However, if it doesn’t then you need to try some other solution to fix it.

Solution 2: Identify the Program Triggering the Error

To fix rundll error, the first thing that you need to do is to identify the program generating this error and check it for validity. For this, simply analyze the rundll error dialog box. Let’s say you get the following run.dll error on your system Error loading
C:\WINDOWS\system32\usvdgpo.dll.
This error message indicates that the program ‘usvdgpo’ is causing the run.dll error on the system. Once the program is identified, the next step is to stop it manually. For this, you go to the start menu and click run, now type ‘services.msc’ in the dialog box, and press ‘Enter’. After that right-click the related process to your rundll error and then click the ‘Stop’ button to stop the program. Now close the window. Though this action will stop the process it will not remove the reference to the bogus items. To remove that you will have to remove the program from the Windows Registry. This can be done by typing ‘Regedit’ in the Run dialog box. This will open the registry editor. From the keys listed in the left panel, navigate to the following key: HKEY_LOCAL_MACHINE/Software/Microsoft/Windows/CurrentVersion/Run. Now right-click on this key and click delete and then simply close the windows registry and reboot your system. After this, you will then have to uninstall the program to completely eradicate the rundll error. To do this, go to the control panel, Add/remove programs, and right-click to uninstall the program causing the run.dll error on your system. Click yes to confirm your decision. Once the program is uninstalled, reinstall the program using the program CD to get yourself an error-free program. This procedure is tricky, time-consuming, and maybe slightly challenging for you especially if you are not a computer programmer.

Solution 3: Run an Antivirus

If the cause of the run.dll error is a malware attack then you need to download an antivirus and run it on your system. However, this may impact the speed of your PC. Antivirus is notorious for slowing down PC speed.

Solution 4: Download Restoro.

If you are not a computer programmer, then running Restoro is possibly the easiest way for you to resolve rundll errors on your system in seconds. Restoro is an innovative, cutting edge, and multi-functional feature-filled PC repair tool that can be used to repair all kinds of system-related errors including rundll errors. The registry cleaner utility cleans up the RAM by removing unnecessary and obsolete files like junk files, invalid registry entries, and files from the uninstalled programs. It resolves disk fragmentation issues, repairs dll files, and the registry. In just a few clicks you can easily repair the registry and remove malware thereby resolving rundll errors on your system. Operating Total System Care is quite simple. It has a user-friendly interface and easy navigation. It is safe, efficient, bug-free, and compatible with all Windows versions Click here to download Restoro and resolve ‘rundll errors’ and access/run programs on your system smoothly.
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Changing the Ownership of a File or Folder
There are many times when you have to change the ownership of a folder or a file so that other users can use them as well or if you want to transfer files to them, or an old account has been removed and all the files need to be assigned to a new user. Windows 10 keeps all these files locked under the account by default which created a folder or file. So unless a user is an admin or if the file belongs to that particular user, other users won’t be able to access or edit the file. So if you want to change the ownership of a folder or a file, then you’ve come to the right place as this post will guide you on how exactly you can do that.

To get started, make sure to follow the instructions provided below carefully.

Step 1: First, you need to open File Explorer by tapping the Win + E keys. Once you’ve opened it, navigate to the folder or file that you want to change the ownership. Step 2: Right-click on the folder or file and click on Properties and then go to the Security tab. Step 3: From there, click on the Advanced button located at the bottom right part of the window to open the Advanced Security Settings of the folder or file. Step 4: As you can see, the current owner will be listed with the Change link available next to the “Owner” label. Now click on this link to open the Select User or Group window. Step 5: After that, click on the Advanced button once again and click on the “Find Now” button to see the list of all the users as well as groups that are available in the computer. Step 6: Then select the user you want to give ownership to and click on the OK button and then click the OK button once more to save the changes made. Step 7: This will take you back to the Advanced Security Settings window but this time, the owner will be changed to whoever user you’ve selected. But you’re not done yet as you still have to check two additional options to help you completely transfer the ownership of the sub-folders as well as the files. You have to check the checkbox of the following options:
  • Replace owner on sub-containers and objects
  • Replace all child permission entries with inheritable permission entries from the object.
Step 8: After that, you need to click the Apply and OK buttons to confirm and save the changes made. This will completely transfer the ownership of the file. However, there is still one last thing you have to do – you have to go back to the Advanced Security Settings window to remove the access of any other user on the folder or file. Once you’re there, remove the existing user to make sure that the only assigned user has the access to the folder or file.
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Power Calibration Error or Medium Speed Error when burning CD/DVD
If you are one of the few users who is still burning CDs and DVDs, you might have come across an error that says, “Medium Speed Error” or “Power Calibration Error”. There are several factors that could cause this error but it’s most likely that the CD/DVD burner wasn’t able to determine the Optimum Power Calibration rate properly. So what is Optimum Power Calibration rate? It is a test that runs before the burning process to regulate the optimal laser power needed to complete the job. And if this process malfunctions, obviously, you won’t be able to burn the content on your CD or DVD. There are also cases when the Power Calibration error pops up for some small issues that have nothing to do with the regulation of laser power. Here are some quick fixes you can try to resolve the Power Calibration error when burning a CD or DVD.

Option 1 – Make sure you’re using good quality CD or DVD

A lot of burning issues stem down to the purchase of low CDs or DVDs to make sure that what you are using has good quality for it is not always a good idea to purchase cheap products as cheap products could also mean cheap quality.

Option 2 – Try burning at lower speeds

If you’re certain the problem is not with the CD or DVD you are using then you can try burning again, this time at lower speeds. There are instances when doing things quickly can end in a disaster such as the “Medium Speed Error” or “Power Calibration Error” you’re getting.  To fix the problem, you have to burn at a slower speed and just take the time to wait until the burning process is done.

Option 3 – Try updating your burning software

It’s always a good idea to check if the burning software you’re using requires an update especially if it’s throwing up “Medium Speed Error” or “Power Calibration Error”. Thus, you need to update your burning software right away and then try to burn your CD or DVD once the update has been completed.

Option 4 – Try cleaning the disk drive

You might want to consider cleaning the disk drive using several tools in the market that is designed to clean the disk drive. These tools work on removing dust particles from the lens which helps a lot in the burning quality. Aside from that, it also helps in reducing errors like “Medium Speed Error” or “Power Calibration Error”. So give this option a try as it might time for a disk drive cleanup.

Option 5 – Try to disable the IMAPI

If none of the options given above worked, you might want to disable the IMAPI or Image Mastering Applications Programming Interface. How? Refer to the steps below.
  • Open Control Panel by simply clicking the Start button and then typing “control panel” in the field.
  • Control Panel should pop up in the search results. Once you found it, click it to open it.
  • Next, select System Security > Administrative Tools and then click Services.
  • After that, you’ll have to search for the “IMAPI CD-Burning COM Service” option.
  • Then right-click on it and select Properties.
  • From there, switch the Startup Type from “Enabled” to “Disabled”.
  • Now click on Apply and then restart your PC.
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