What to do if Windows 10 PC turns on by itself

Error Code 45 – What is it?

Error Code 45 is a common device manager problem that users encounter on any Windows 2000 and later operating system versions.

The error occurs when your Windows system fails to acknowledge the connected device by either stating that the device is not present or that it was previously attached to a computer.

The error pops up and appears on your computer screen with the following message:

“Currently, this hardware device is not connected to the computer” (Code 45)

Solution

Error Causes

The error is prompted either due to a temporary system file malfunction or a problem in the Windows registry system files. In the latter case, it could be due to a damaged or corrupted Windows registry.

Further Information and Manual Repair

While it may appear that Error Code 45 is a serious threat to your computer, it cannot be farther from the truth. Error Code 45, unlike other error codes, is the easiest one to fix. Here is how you can do it.

Method 1 – Reconnect the device to your computer

Unplugging and plugging the USB cable of the device into the computer is the easiest way to solve the error.

Doing this will help refresh the system and increase the likelihood of the device driver files loading and function properly.

It is often only a case of reconnecting the device back to your computer which helps eliminate the error and does not require any particular resolution other than this.

Method 2 – Install DriverFIX

Although reconnecting the disconnected device is all you need to fix the error code, it is always safer to fix your Windows registry system files by using a program like DriverFIX.

DriverFIX, with its user-friendly approach to help you fix your PC issues, comes with an integrated database that detects which drivers you need to reconfigure within just a few seconds and downloads it automatically.

It further ensures that your drivers are installed in their entirety leaving no room for any corrupted or damaged registry.

It also has the added advantage of being able to backup and restores your files should there be the slightest possibility of system file damage.

Thus, registry damage can be averted by letting the software roll back the system files to an earlier healthy checkpoint. DriverFIX is the answer to fixing your PC error codes accurately and quickly.

Click here to download DriverFIX now!

If you suddenly see a system icon or an application icon that has a blue and yellow shield or icon overlay at the corner, this indicates that the application has to run with admin privileges and each time you run these kinds of applications, a UAC or User Account Control prompt will appear to confirm if you really want to run the application. Although this kind of behavior is for security reasons, it can get quite annoying especially if you use the application on a daily basis. To make it convenient for you, this post will walk you through how you can remove the blue and yellow shield icon from an application on your Windows 10 computer. The User Account Control or UAC setting is the one that ensures no program can run with administrative privileges unless it is allowed by the user. This stops any program that could be potentially harmful to the computer from making any changes which are why keeping this setting to its default state is for the best and making any changes in its setting is not recommended unless it is really needed. So if you really have to remove the icon overlay in an application, there are several ways you can do that. You can try reinstalling the program and set Compatibility or change the UAC level. For more information, refer to every option given below.

Option 1 – Try to reinstall the application and set Compatibility

As you know, the application icons where you can see the shields are shortcuts mostly and they signify that the User Account Control will appear each time you launch the app. Thus, if you have an app that you use regularly and you’re certain that the app can be trusted, you can try to reinstall the app and set its compatibility by following these steps:

• You need to uninstall the app first and then install its latest version. You must not run or open the app after you reinstall it, not until you’ve completed the steps.
• Next, you have to right-click on the shortcut icon of the app, and from the menu, select Properties.
• Afterward, go to the Compatibility tab and look for the checkbox labeled “Run this program as an administrator” and uncheck it.
• Now click on the Apply and OK buttons to save the changes made. This should remove the shield icon from the app.

Option 2 – Try changing the UAC level

• Tap the Win + Q to open the search bar and type UAC to see the User Account Control setting.
• From the UAC setting, lower the UAC level by selecting the settings that say, “Notify only when apps try to make changes to my computer”.
• After selecting that option, you shouldn’t be getting any warning now when you run the app with the shield icon. But keep in mind that this is not a temporary setting which can be risky especially if the app can’t be trusted.

Compare Exchange128 error – What is it

Some Windows 7 and Windows 8.1 users reported experiencing a Compare Exchange128 error when trying to upgrade to Windows 10. The error reads, “You can’t install Windows 10 because your processor doesn’t support CompareExchange128”. In order to upgrade to Windows 10 (64-bit), the CMPXCHG16B instruction must be present. If you receive this error, this mostly means that your CPU doesn’t have the CMPXCHG16B instruction.

Solution

Error Causes

The CompareExchange128 error normally occurs due to two possible reasons:

• CPU lacks CMPXCHG16b Instruction
• Old & Outdated BIOS – Even if your CPU has the CMPXCHG16b instruction, the CompareExchange128 issue can still occur if you have an older BIOS.

Further Information and Manual Repair

One main requirement to upgrade to Windows 10 is for your CPU to have the CMPXCHG16b instruction. You also need the right BIOS version to guarantee a smooth installation. See below on how to manually fix this issue.

NOTE: If you don’t feel confident using the manual methods listed below, it’s highly advisable to get help from an expert technician. If you don’t know someone, you can also use an automated tool to fix this.

Before performing any fixes, try to determine first if the cause of the error is due to your CPU lacking the CMPXCHG16b instruction. You can use a CPU Info tool that provides complete details about your processor, memory, and motherboard. If you’re looking for more in-depth information, you might also try command-line utilities. But, the safest and easiest way to check this is by simply searching online. Try using the search query: <CPU Model> CMPXCHG16b

Method 1 – Update your BIOS

This method will download the latest BIOS from your motherboard’s manufacturer. This makes sure your CPU has the CMPXCHG16b instruction needed to complete the Windows 10 64-bit installation. To update your computer’s BIOS, complete the following steps:

1. Determine first the current BIOS you have on your computer. Open System Information Windows app and type msinfo32 in the search bar. The BIOS version will appear under the processor speed. Record it somewhere.

2. Go to the support page of your motherboard’s manufacturer. Find if there’s any update on the BIOS that you’re currently using. If you find one, download the BIOS update file available. Make sure that you’re looking into the right model and you download all the necessary documentation. Otherwise, the BIOS update might not work.

3. Update your BIOS. Most BIOS update steps are straightforward. Just make sure to follow the steps provided.

Method 2 – Install Windows 10 32-bit version

If updating the BIOS doesn’t work, what you can do is install a 32-bit version of Windows 10 instead of the 64-bit version. Here’s how to do this:

1. Download and install the 32-bit version of Windows you currently have. If you have a Windows 7 64-bit version, get the 32-bit version of Windows 7. The same goes for Windows 8.1. When you do this, you might want to back up your files first. Remember that installing the 32-bit version works like other installations, and could delete some of your files.

2. After installing the 32-bit version, go to Updates and install all the necessary updates. This includes upgrading to Windows 10 if you’re asked to.

3. When you installed the Windows 10 upgrade, you’ll now have the Windows 10, 32-bit version installed. This will be the version activated on Microsoft servers. Despite this, the activated version stored is only applicable to your computer’s hardware, not the version of Windows 10.

4. Download Windows 10, 64-bit version.

5. Prepare an empty DVD or USB flash drive. Use Creation Media software then click the Create Installation Media for Another PC option.

6. Install the 64-bit Windows 10 version you downloaded from Step 4. Make sure not to put anything when you’re asked to input the serial number.

7. Once the installation is complete, you’ll have the 64-bit version of Windows 10.

Method 3 – Buy a new processor/motherboard

If the above two methods don’t work, there’s a great chance that this error occurs because of an outdated processor/motherboard. Your next possible solution is to buy an updated model that’s fully compatible with 64-bit Windows 10.

Method 4 – Download an automated tool

If all else fails, you might want to consider using this powerful automated tool to quickly fix the problem and any other computer-related issues.

What is OpenCandy?

OpenCandy is an application that downloads and installs software, including other Internet Browsers to a computer system. Used as a bundle, this application installs additional programs that you may knowingly or unknowingly agree to install. Since most users don’t accept the challenge of reading the EULA in its entirety, they tend to download bundled applications unknowingly.

Assessment of OpenCandy PUP

During the initial assessment of OpenCandy, I was a little skeptical about what to look out for or expect. In fact, I had to install the OpenCandy.exe file twice to discern its behavior. I’m not sure how this application got its name but I do believe it has something to do with the fact that it supposedly helps Internet users open a new world of Internet browsing. That conclusion was arrived at after realizing that OpenCandy.exe installed mostly Internet browsers along with a tune-up tool on the test computer. However, as a result of the system requirements, there was a pop-up message indicating that Internet Explorer 8 was not compatible with the computer system in question. In comparison to the malware I’ve encountered since I started researching malware, OpenCandy is everything but malicious. In fact, this application is only categorized as malware because of its’ subtle covert nature of installing bundled programs unsolicited by the user. Additionally, OpenCandy coerces users into changing their Internet Browsers by installing those unrequested by the user. In fact, it’s no shock that OpenCandy chose to install the Internet Browser ‘Opera’ as a part of this bundle since it’s one of the least used browsers according to the Federal Government. Clearly, this was a smoothly disguised advertisement or promotion to force users into using the Opera Browser, along with Internet Explorer 8.0. While these aforementioned browsers in themselves aren’t malicious and are in no way considered malware, they were installed as a promotional tool and without the request of the user. Despite being mentioned within the EULA, advertisers are capitalizing on this since most users do not bother to read the agreements when installing a program. Furthermore, OpenCandy, like most other bundled applications I’ve dealt with, threw in a tune-up tool as a part of the promotion. I found this tune-up application annoying since I had to hassle my way into getting it to close from the computer screen. I can only imagine the hassle users would go through trying to remove this software. Image 7: Depiction of a scan performed by Tuneup Utilities. The scan detected that several areas on the test PC could be optimized/tuned up. Image 8: After a scan was completed using the Tuneup utility program, I was given an option to buy the full version. Nothing is wrong with this marketing strategy. In fact, most utility tools if not all will scan your computer to detect threats or loopholes, but they won't exactly allow you to fix those problems unless you buy the full version. It's not unfair, it's just business. Programs installed during the installation of OpenCandy include:

• Web Companion: Developed by Lavasoft, Web Companion is said to be an application that serves as a security defense for your Internet browsers by preventing unauthorized changes (see image below)
• Tuneup Utilities: Tuneup Utilities does exactly as it says. It cleans up a computer system, whereby preventing unused programs from slowing it down.
• Opera Stable 30.01.1835.88: Opera is a fast, simple, and effective Internet browser that allows users to get around on the web.

All in all, the intent of installing an application such as OpenCandy is to unleash a world of promotion or advertisements on your computer. They are pretty annoying and in some cases difficult to remove. Furthermore, as a user, you want to control what gets installed on your computer without being dictated to or coerced in some EULA that you probably overlook. To completely remove OpenCandy PUP from your computer, click here to download and install Spyhunter.

As you know, you can encounter Blue Screen errors at any given point after your computer boots up and can just reboot it randomly which results in loss of unsaved work. One of these Blue Screen errors is the “REGISTRY_ERROR”. This kind of Stop error has a bug check value of 0x00000051 which indicates your computer’s registry has encountered a severe error. There could be a number of causes for this error but at the time of writing, it is quite difficult to narrow them down to one component. If you face this kind of Blue Screen error, worry not as this post will guide you in fixing it. As mentioned, this error indicates that there is something wrong with the registry, particularly an I/O error while it tried to read one of its files. This may be caused by hardware issues or file system corruption. It could also be due to failure in a refresh operation which is only used by the security system and only when resource limits are encountered. To fix the Registry_Error Blue Screen, you can try to use the CHKDSK utility or the System File Checker, or the DISM tool or run the Blue Screen troubleshooter. You may also try to reset your computer or repair Windows by using installation media.

Option 1 – Run the Check Disk utility

The first thing you can do to fix the REGISTRY_ERROR Blue Screen error is to run the Check Disk utility. How? Follow these steps:

• In the Windows Search box, type “command prompt” and from the search results, right-click on Command Prompt and select “Run as administrator”.
• After opening Command Prompt, type this command and tap Enter: chkdsk <Drive Letter>: /f /r /x /b
• The command you entered will start to check for errors and fix them automatically. Else, it will throw an error message saying, “Chkdsk cannot run because the volume is in use by another process. Would you like the schedule this volume to be checked the next time the system restarts? (Y/N)”.
• Tap the Y key to schedule Disk Check the next time your computer restarts.

Option 2 – 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 REGISTRY_ERROR. It can be found in 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 3 – Run System File Checker

• Open Command Prompt with admin privileges.
• After that, execute this command: sfc /scannow
• Once the scan is completed, restart your computer and then check if the REGISTRY_ERROR is now fixed.

Option 4 – Run the DISM tool

You can try running the Deployment Imaging and Servicing Management or DISM tool to fix the REGISTRY_ERROR 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. Once it’s done, restart your computer.

Option 5 – Reset your computer

• Tap the Win key or click on the Start button located in the Taskbar.
• Then click on the Power button at the bottom right portion of the screen.
• Next, press and hold the Shift key on your keyboard and then click on Restart. This will restart your Pc into the Advanced Startup options.

Note: Once you have access to the Advanced Startup options, you have to go to the setting which allows you to Reset your Windows 10 PC. All you have to do is select Troubleshoot > Reset this PC to reach the following screen Afterward, select either the “Keep my files” option and then proceed to the next on-screen instructions that follow to reset your Windows 10 computer without losing your files.

Option 6 – Try to perform repair install by creating a Windows 10 installation media

• Click this link and then click the Download Tool Now button.
• Next, click the “Use the tool to create installation media (USB flash drive, DVD, or ISO file)…” option and follow the next given instructions on the screen.
• Now select the ISO file option in step 5.
• After that, you should now have an ISO file.
• Next, go to the location where you’ve downloaded the ISO file.
• Then right-click on the Windows 10 ISO file and select the Open with option and then select File Explorer.
• Now click on “setup.exe” and follow the next instructions that appear on the screen. When asked, you have to select either Nothing (clean install) or Keep personal files only option. Take note that you must not select the “Keep personal files, apps, and Windows settings”.

Error 451 - What is it?

This is a typical SMTP error code. SMTP is the abbreviation for Simple Mail Transfer Protocol. It is an internet standard for email transmission. In other words, SMTP is a text-based protocol in which the sender communicates with the mail receiver by issuing commands and receiving a response code. The SMTP error 451 is displayed in the following format:

‘451 Requested action aborted: local error in processing’

This error message indicates that the program cannot send more messages and the server has hit the limit. This is because some mail servers have limits. The sever stops the task of sending and receiving emails when this limit is achieved.

Solution

Error Causes

The causes of error 451 include:

• Server limit reached
• Email rejection due to a remote anti-spam filter
• Request denied by the server
• Viral infection

If you heavily rely on email communication with your business partners and colleagues, then it is advisable to immediately resolve this issue without any delays. Though this error is not fatal, you should repair it right away to avoid inconvenience. SMTP error code 451 can hamper your ability to communicate via email.

Further Information and Manual Repair

Here are some of the best, easy, and effective DIY methods that you can try to repair error code 451 on your PC.

Method 1

To fix this error, simply follow these steps:

• login to Linux SSH
• Open the file /etc/localdomains
• Nano/etc/localdomains and then add the domain name that is triggering email sending error
• Now reboot your PC

This will hopefully resolve the issue. Nonetheless, if the error code still persists, then try other methods given below.

Method 2 - Configure List Settings to change the server limit.

This can be done by accessing the List Settings then Outgoing Mail Server (SMTP) and then the Limit Feature. By accessing the limit feature, you can easily adjust the program to any limit of your choice. Configure the limit and save changes. Reboot PC to activate the changes made.

Method 3 - Scan and Remove Viruses.

This error code can also be triggered due to viral infection. If this is the cause, then simply download an anti-virus on your PC. Scan the entire system and remove all detected malicious programs like Trojans, malware, adware, viruses, and spyware. This will repair the error 451 on your system.

Method 4

If the error still persists, then contact your SMTP provider to check the situation and resolve it. There is a possibility the error is generated from the SMTP provider’s end.

If you are trying to connect your mobile or external device to your Windows 10 computer but suddenly encountered an error saying, “A device attached to the system is not functioning”, read on as this post will guide you on how you can resolve this error using a couple of potential fixes. In this case, it is possible that the connected device is not working for some reason and this error pops up when you connect your device or when you try to move or copy files from your computer to your external device and vice versa. As you can see, the error message is pretty straightforward, and it mostly occurs when you connect plug and play devices such as USB drives, printers, external storage devices, and many more. And when you open the Device Manager to check the device, you will most likely see a yellow exclamation mark on the device which indicates that the device is currently having problems. To fix this problem, there are several options you can check out. You need to check the status of the device or check the compatibility between the external device and the drive types. You also have to make sure that the device is connected properly or check if the device has been formatted properly. For more details, follow the given suggestions below.

Option 1 – Try to check the status of the device

The first thing you can do to get rid of the error is to check the status of the external device, especially if it’s a plug-and-play device. So when your computer boots, check if it is able to detect the device or not.

Option 2 – Try to check the compatibility between the external devices and drivers

As you know, when you connect an external device to your computer, Windows installs drivers to communicate with the device, the same way as any hardware you connect to the motherboard and if the driver ends up getting corrupted or is incompatible, then you need to update the device driver. To do that, follow the steps below.

• First, click the Start button and type “device manager”.
• Then click on the “Device Manager” from the search results to open it.
• From there, look for the driver the external device related to and then right-click on each one of the Device drivers and select the Update Driver from the menu.
• Restart your PC and then click the “Search automatically for updated driver software” option.

Note: If updating the device drivers didn’t work, you can try to reinstall them instead.

Option 3 – Try checking the hardware connections

The first thing you have to do before you further troubleshoot the problem is to check the hardware connections of your computer and see if there are damaged ones, just like with USB ports, it would also affect the overall connectivity of the device with the computer. So if you notice some irregularities in the connecting cable physically, you might have to buy another one and replace it and then see if it fixes the problem or not.

Option 4 – Check if the device is formatted properly

You might also want to check if the external device is properly formatted especially if you’ve recently formatted it. If a device wasn’t formatted properly, then it’s no wonder why you’re getting the “A device attached to the system is not functioning” error. To fix this, you need to use Disk Management. From there, you can find the devices connected but are not visible. If you are using an admin account, then to fix this error, you have the option to format the drive or create new partitions using the interface. Once you do this, it should resolve the problem.

Option 5 – Try to run System File Checker or SFC scan

• Tap Win + R to launch Run.
• Type in cmd in the field and tap Enter.
• After opening Command Prompt, type in sfc /scannow and hit Enter.
• Once done, restart your computer.

Option 6 – Restart your computer in a Clean Boot State

If a third party program like antivirus is the one that’s causing the problem, you can try to put your computer in a Clean Boot State to isolate the issue by following these steps:

• Log onto your PC as an administrator.
• Type in MSConfig in the Start Search to open the System Configuration utility.
• From there, go to the General tab and click “Selective startup”.
• Clear the “Load Startup items” check box and make sure that the “Load System Services” and “Use Original boot configuration” options are checked.
• Next, click the Services tab and select the “Hide All Microsoft Services” check box.
• Click Disable all.
• Click on Apply/OK and restart your PC. (This will put your PC into a Clean Boot State. And configure Windows to use the usual startup, just simply undo the changes.)
• Now try to connect your device or copy the files to your external device again and check if the error is now gone.

Recently, a number of users reported getting an error code 0x8007025D-0x2000C while updating their Windows 10 computers using an ISO or the Media Creation tool. You will also see a detailed error message saying, “The installation failed in the SAFE_OS phase with an error during APPLY_IMAGE operation” together with the error code 0x8007025D-0x2000C. This kind of issue usually occurs when there is some problem with the installation files and when Windows Update fails to apply upgrade using the Media Creation Tool or ISO. To resolve this issue, you can use the troubleshooting options given below as a reference.

Option 1 – Try recreating the Windows 10 installation USB

Recreating the Windows 10 installation USB might help in fixing the problem. You can use a USB drive to do so but make sure that it has a great read-write speed. Follow the steps below to recreate Windows 10 installation USB”

• Click this link and then click the Download Tool Now button.
• Next, click the “Use the tool to create installation media (USB flash drive, DVD, or ISO file)…” option and follow the next given instructions on the screen.
• Now select the ISO file option in step 5.
• After that, you should now have an ISO file.
• Next, go to the location where you’ve downloaded the ISO file.
• Then right-click on the Windows 10 ISO file and select the Open with option and then select File Explorer.
• Now click on “setup.exe” and follow the next instructions that appear on the screen. When asked, you have to select either Nothing (clean install) or Keep personal files only option. Take note that you must not select the “Keep personal files, apps, and Windows settings since it doesn’t really work.

Option 2 – Try running the Windows Update troubleshooter

You might also want to run the Windows Update Troubleshooter as it could also help in fixing Windows Update error code 0x8007025D-0x2000C. To run it, go to Settings and then select Troubleshoot from the options. From there, click on Windows Update and then click the “Run the troubleshooter” button. After that, follow the next on-screen instructions and you should be good to go.

Option 3 – Update the BIOS

Take note that you have to be careful when modifying something in the BIOS. So if you don’t know much about it, it’s best if you skip on this option and try the other ones instead. However, if you are well-versed in navigating the BIOS, then follow the steps below.

• Tap the Win + R keys to open the Run dialog box.
• Next, type “msinfo32” in the field and press Enter to open System Information.
• From there, you should find a search field on the bottom where you have to search for the BIOS version and then press Enter.
• After that, you should see the developer and version of the BIOS installed on your PC.
• Go to your manufacturer’s website and then download the latest version of BIOS on your computer.
• If you are using a laptop, make sure that you keep it plugged in until you have updated the BIOS.
• Now double click on the downloaded file and install the new BIOS version on your computer.
• Now restart your computer to apply the changes made.

Option 4 – Try restarting the Background Intelligent Transfer Service

The Background Intelligent Transfer Service or BITS is a part of the Windows Update service and is the one that manages the background download of Windows Update, as well as scans for new updates and so on. And if Windows Update is experiencing some problems, you can try restarting BITS but make sure that you have admin privileges to do so.

• Tap the Win + R keys to open the Run dialog box.
• Next, type “services.msc” in the field and hit Enter to open Windows Services.
• From the list of Services, look for the Background Intelligent Transfer Service and double-click on it to open Properties.
• After that, you need to set the Startup type to “Automatic (Delayed Start) and click on Apply.
• Now click the Stop button to stop BITS and then click the Start button to restart the service.
• Click OK to save the changes made and then restart your PC.

Option 5 – Try to update Windows after a couple of minutes or an hour

There are times when the issue is from Microsoft’s end. It could be that there’s some issue with Microsoft’s server so it would be better if you give it a couple of minutes or an hour or so before trying to run Windows Update again.

As of late, many users reported getting an error in Windows Sandbox that has an error code of 0x80070015. According to users, they encountered this error when they tried to start Windows Sandbox. Based on the error code, it seems that there are some problems with the supporting services of Windows Sandbox that trigger the error. It is possible that these services are misconfigured or that they are outdated and have to be updated. Here’s the complete message of the error:

“Windows Sandbox failed to start. Error 0x80070015. The device is not ready. Would you like to submit feedback about this issue?”

If you are one of the users who encountered this kind of error in Windows Sandbox, then you’ve come to the right place as this post will help you sort this problem out. All you have to do is follow each one of the options provided below.

Option 1 – Make sure that all the supporting processes and services of Windows Sandbox are running properly

If running Windows Sandbox as an administrator didn’t fix the error, you have to ensure that all related processes for Windows Sandbox are running properly. To do that, follow these steps:

• Tap the Win + R keys to launch the Run utility and type “services.msc” in the field and hit Enter to open the Windows Services Manager.
• Next, from the list of services, look for the following services in the given order:
  • Network Virtualization Service: (Startup type: Manual)
  • Virtual Disk: (Startup type: Manual)
  • Hyper – V Virtual Machine: (Startup type: Manual)
  • Hyper – V Host Compute Service: (Startup type: Manual)
  • Container Manager Services: (Startup type: Automatic)
• After you find the aforementioned services, restart each one of them.
• Once done, try to open the Windows Sandbox again and see if the error is fixed or not.

Option 2 – Try to install any pending Windows Updates

If the second option still didn’t work, then you might want to check Windows Updates on your computer and see if there are any pending Windows Updates you have to install. All you have to do is go to the Windows 10 Settings app and then go to the Windows Updates section and click on the “Check for updates” button to check if there are any pending updates that are needed to be installed. This could fix the Windows Sandbox Error 0x80070015.

Option 3 – Try to run Windows Sandbox as an admin

• In the Start Menu, scroll down until you see the entry for the Windows Sandbox.
• Then right-click on it and select More and then select the “Run as administrator” option to open it with admin privileges.
• Next, if a User Account Control or UAC prompt pops up, just click on Yes to proceed.
• You should now be able to open the Windows Sandbox without the error. However, if the error persists, proceed to the next given option below.

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.