How to Fix CPU Not Compatible Error Message On Windows 10

In today's age of smart gadgets and complete replacement of even some simple things with their smart counterpart, it is not really a surprise to see some strange innovations that try to take advantage of modern technology.

One of these innovations is a smart book, or to be more precise smart note, a reusable notebook that could be connected to your phone.

Why Rocketbook Fusion smartbook

One thing that could justify, well it should justify buying Rocketbook is the preservation of trees and the environment since it can be reused. The second argument would be its price since it is not expensive considering what it offers.

On top of all, you also have a free application for your phone in order to take full advantage of it.

What is a smartbook?

Imagine this scenario, you have a notebook of 42 pages with several different page styles inside. You write in it and after it is filled you upload its content to your email or cloud service of your choice, get a cloth, erase everything and start again from zero.

So as mentioned notebook comes with 42 pages of various page styles. Most of the pages are either lined or dotted but the notebook also includes a monthly calendar, two-week detailed calendar pages, and three pages for project or idea tracking. Since everything can be erased this is enough variety to cover all basis and eliminate any need for another workbook ever.

When you feel like you want to save work or once it is filled you can easily upload and save the workbook from the scan page option in the free Rocketbook app. Once scanned pages can be uploaded to your preferred cloud service or sent to your email.

Now in order to write and be able to erase any of Rocketbook's notebooks, you will have to use Pilot's Frixion writing pens. They will dry around 15s on the page and can be of course easily wiped with a damp microfiber cloth that is included with the purchase. One pen also comes with a workbook when purchased.

Application

Application has cool features, of course, the most important and most useful one is setting your upload scan destination so when you scan your pages they get automatically uploaded to your chosen destination.

In the application settings, you can also toggle some handwriting recognition features that will allow you to easily search your uploaded documents. For example, you can search through documents just by writing now or two words. There is also a Smart List feature as well that will take your checklist and make it into a virtual checklist.

The app also has a fun Explore section where you can find all sorts of fun hacks and different ideas on how to use your Rocketbook.

Stop C00002lA Fatal System Error- What is it?

C00002lA Fatal System Error is a blue screen of death error that may occur when you start your Windows NT 4.0 based computer. This error causes the screen to turn blue and the system also shuts down. The stop C000021A error message is displayed in the following format:

Stop c000021a {Fatal System Error} The session manager initialization system process terminated unexpectedly with a status of 0xc0000017 (0x00000000, 0x0000000) The system has been shut down.

Error Causes

The stop C000021A error occurs when either Crsrss.exe or Winlogon.exe fails. When the Windows NT kernel identifies that either of these processes has failed, it stops and the error code stop C000021A appears on the computer screen. Here are some of the underlying causes for the stop C0000021A error:

• The incompatible third-party program
• Hard disk issues
• Service pack installation has failed
• Mismatched system files have been installed
• Bad and invalid registry keys

Further Information and Manual Repair

To resolve the stop C000021A Fatal System Error on your PC try the following solutions:

• Remove Incompatible Third Party Programs

If the error occurred after you recently installed a new program, then it is advisable to remove that program. The error occurs due to the incompatibility of the program. To remove the program go to the start menu and click on the control panel. Now click on Add/Remove Program tab and double click on the program name that you recently installed and remove it from the list. Once removed, not reboot your PC. Reinstall a compatible program and run it. It is most likely to resolve the issue. However, if the stop C000021A error still occurs, then it means the problem is critical. It is related to the registry.

• Repair and Restore the Registry

This procedure is slightly long and tricky. To try it, you need to be technically sound. Here’s what you have to do: first create a parallel installation of Windows NT. Start your PC to the parallel installation and then open the Registry Editor. On the Registry Editor’s Windows menu click HKEY_LOCAL_MACHINE on Local Machine and then click Load Hive. Now type the path %systemroot%system32configsystem into the System hive of the prior installation. Then click open. Here you will be prompted to enter the name of the key, type TEST. Note the setting for the current DWord value in the preceding registry key. This is 0x1 and is denoted by CURRENT:Reg_Dword: 0x1. This value indicated that the Current Control Set for your original Windows NT installation corresponds to ControlSet001 in this window. Now if the value is 2, it indicated that the Current Control Set corresponds to ControlSet002. Now locate the following registry key: HKEY_LOCAL_MACHINETESTControlSetXXXControlSession Manager. XXX is the Current Control Set Value. And delete any pending file rename operation entries. Then click TEST hive and then click Unload Hive. After that again repeat the process, open the registry menu and click load hive, here type the path %systemroot%system32configSoftware to the Software hive of the prior installation and then click open. Now you type TEST 2 when you are prompted for the name of the key. Remove any pending file rename operations entries in the following registry keys: HKEY_LOCAL_MACHINETEST2MicrosoftWindowsCurrentVersionRunOnce HKEY_LOCAL_MACHINETEST2MicrosoftWindowsCurrentVersionRunOnceEx Now click TEST2 hive and then click unload hive. Quit the Registry Editor and then restart your original installation. This will resolve the stop C000021A error.

What Is STOP Code 0x0000008e

The STOP Code 0x0000008E is essentially an error code that is displayed on the STOP message. This STOP message is also commonly known as Blue Screen of Death or BSOD for short. When this error occurs, usually messages like, “STOP: 0x0000008E” or “KERNEL_MODE_EXCEPTION_NOT_HANDLED” are displayed to the user.

Solution

Download Available to Completely Repair Error 0x0000008e

Error Causes

These errors are commonly caused by failures of memory hardware. However, viruses, hardware failures or issues with the device drivers may also trigger them. If this error code appears but Windows is successfully able to recover from it, then the message ‘Windows has recovered from an unexpected shutdown’ is displayed to the users. Regardless of what causes these errors, it is of paramount importance that counteractive measures are taken as soon as the error appears.

Further Information and Manual Repair

While this error can be removed in many ways, the most effective ones are listed below as follows.

• The screen might be a fluke. Restart your system; the blue screen that appears to you may not be what it seems.
• Have you just modified or installed new hardware or driver? If yes, it is highly likely that the change you have made has triggered the error. If this is the case, it is strongly recommended that you revert back to the original settings and check whether the blue screen appears again or not. If it does, you can fix it by reconfiguring or removing the hardware you have recently installed. You can perform System Restore or you can go back to the previous versions if you have installed a new driver.
• To keep this error from occurring in the future, it is strongly advised that you test your RAM. Damaged memory or one that’s unable to perform in the usual manner is often the reason this error occurs.
• Ensure appropriate installation of your system memory. If you have installed memory in a way other than advised by your memory manufacturer that it may lead to STOP 0x0000008E error or other problems.
• Misconfigured or over-clocked memory settings can cause STOP 0x0000008E errors as well. To remedy this situation, it is best advised to return the BIOS settings to their default level.
• If you haven’t updated your Windows, apply all the updates you come across. Patches and service packs specifically address such issues.

Every now and then, the Windows Installer can also encounter some problems or glitches. One of these problems is where the Windows Update Standalone Installer, Windows Defender as well as Windows Firewall throws an error message that says, “The specified service does not exist as an installed service, 0x80070424”. This type of error can actually affect various applications on your computer so you have to fix it as soon as you can. Although there is no clear reason for what really causes this error, there are various suggestions you can try to fix it.

Option 1 – Try to run the Windows Update troubleshooter

Windows 10 have various troubleshooters that can help you resolve many system issues. So if you’re dealing with errors “The specified service does not exist as an installed service, 0x80070424”, you can run the Windows Update troubleshooter to resolve it. 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 2 – Try to reconfigure the Windows Time Service

• In the Start Search, type “command prompt” and right-click on Command Prompt from the search results.
• Then click on the “Run as administrator” option to open Command Prompt with admin privileges.
• Now execute each one of the given commands sequentially and hit Enter right after you type each one of them.
  • net stop W32time
  • exe /unregister
  • exe /register
  • net start W32time
• After executing the given commands above, wait until it says, “W32Time successfully registered”.

Option 3 – Try to restart related Windows services

• First, type “command prompt” in the Start Search and right-click on Command Prompt from the search results.
• Then click on the “Run as administrator” option to open Command Prompt with admin privileges.
• Now execute each one of the given commands sequentially and hit Enter right after you type each one of them.
  • SC config wuauserv start= auto
  • SC config bits start= auto
  • SC config cryptsvc start= auto
  • SC config trustedinstaller start= auto

Note: The commands you’ve just executed will make sure that the required Windows services are available.

Option 4 – Try to download and install the Windows Update Agent

You might also want to download and install the latest Windows Update Agent as it could also help you resolve the “The specified service does not exist as an installed service, 0x80070424” error.

Option 5 – Try to reset the Windows Update components

If by any chance that the second option didn’t work, resetting the Windows Update components could also help you resolve the problem. How? Refer to the following steps:

• Open Command Prompt with admin privileges.
• After that, type each one of the following commands and hit Enter after you key in one after the other.
  • net stop wuauserv
  • net stop cryptsvc
  • net stop bits
  • net stop msiserver

Note: The commands you entered will stop the Windows Update components such as Windows Update service, Cryptographic services, BITS, and MSI Installer.

• After disabling WU components, you need to rename both the SoftwareDistribution and Catroot2 folders. To do that, type each one of the following commands below, and don’t forget to hit Enter after you type one command after the other.
  • ren C:WindowsSoftwareDistribution SoftwareDistribution.old
  • ren C:WindowsSystem32catroot2 Catroot2.old
• Next, restart the services you’ve stopped by entering another series of commands. Don’t forget to hit Enter after you key in one command after the other.
  • net start wuauserv
  • net start cryptsvc
  • net start bits
  • net start msiserver
• Close Command Prompt and reboot your PC and then check for updates on your computer and see if the error is resolved.

Option 6 – Try running the Windows Firewall troubleshooter

You could also try to run the Windows Firewall troubleshooter as it might also help you fix the problem. This could help in repairing and fixing Windows Firewall issues automatically. Check if it’s available for your Windows.

When experiencing internet connection problems, most users run the built-in troubleshooter to fix the problem. However, you might come across another problem when instead of fixing the problem, the troubleshooter throws up an error message saying, “The Windows Wireless Service is not running on this computer”. After displaying this error message, the troubleshooter would exit. Usually, this kind of error indicates that Windows has failed to initialize the wireless service so it can start searching for broadcast signals and try to connect to them. So in this post, we have prepared some workarounds that might help you resolve the issue.

Option 1 – Try to check the WLAN Status

You have to make sure that the wireless service is enabled in your computer before you proceed to the other troubleshooting options below as this error could occur for a simple reason as the wireless capability is turned off from your PC either on some built-in settings or physically. This is why you need to make sure that Wireless is enabled. And if it turns out that it is disabled, you need to turn it back on and then reconnect to the wireless network again. You should now be able to connect to the internet without any issue.

Option 2 – Try to check the WLAN AutoConfig Service

The WLAN AutoConfig service is the one that provides the logic and functionality required to discover, connect and configure wireless networks with your PC. Aside from that, it also contains the module that allows your PC to be discoverable to other systems on a network. Thus, you need to verify if the WLAN AutoConfig service is on or not.

• Tap the Win + R keys to open the Run dialog box.
• And in the field, type in “services.msc” and hit Enter to open Services.
• After opening the Services window, look for the entry named “WLAN AutoConfig” and then right-click on it and select Properties from the context menu.
• Next, click on the Start button to turn on the service and then set the startup type as “Automatic”.
• Then try to connect to your Wireless network again and check if the issue has been resolved.

Option 3 – Try to reset the Network Configurations

Resetting the Network Configurations can also help you in fixing the Windows Wireless service as the network settings often get disrupted or corrupted in a variety of different cases every now and then. Note that this module will reset all the network settings stored on your computer.

• Tap the Win + S keys to open Search and then type in “command prompt” in the field.
• From the search results that appear, right-click on Command Prompt and select the “Run as administrator” option.
• After opening Command Prompt, copy and paste the following command and hit Enter to execute it:

netsh winsock reset

• The command given will reset the Winsock data. Once it is executed, restart your PC for the changes to take effect and then check if the internet connection is now fine.

Note: Do make sure that the WiFi drivers are up to date. To do that, follow these steps:

• 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. If you see a red or yellow sign that shows up against the driver, right-click on the driver’s name and select “Update Driver Software” or “Uninstall”. 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.
• Restart your PC.

Note: You also have the option to go directly to the website of your graphics card manufacturer and check if there’s a new update – if there is, download it.

Option 4 – Perform System Restore

Recently, a lot of issues have resurfaced after users installed the latest Windows update. So the wireless service issue might also be related to it. To fix the problem, you can perform System Restore to roll back your Windows to the last time when it was working just fine. It automatically creates backups in time whenever you install a new update or periodically. Follow the steps below to perform System Restore.

• Tap the Win + S keys to open Search and then type in “restore” in the field and select the topmost result.
• Once you’ve opened the restore settings, click on System Restore located at the beginning of the window under the System Protection tab.
• After that, a wizard will appear that will guide you through all the steps needed to restore the system. You can choose either the recommended restore point or a different one.
• After you select the restore point, click Next to proceed to the next on-screen instructions.
• Then select the restore point where the Windows Update was installed on your computer. If you have more than one restore point, you can just select the latest restore point and check the functionality from there. If it doesn’t work, you can just try another restore point.
• Another prompt will appear and will ask you to confirm your actions. Click OK and wait for the system to be restored. Once it’s done, check if the problem’s now fixed.

If you encounter the “Setup has failed to determine supported install choices” error when trying to downgrade or upgrade your Windows 10 computer, this signifies that there are some compatibility issues with the installation process and that Windows was not able to either downgrade or upgrade to another version. Usually, this error occurs when you are using the built-in options in Windows 10 upgrade or downgrade to another version of Windows. This option is mostly used as it keeps the user settings as well as data intact. Thus, you need to keep in mind a lot of parameters before you proceed with the installation because if there is any conflict in the process, you certainly won’t be able to downgrade or upgrade your Windows computer. To resolve the issue, here are some suggestions that might help.

Option 1 – Try running in Compatibility mode

This is the first thing you can try to resolve the issue instead of going right ahead on making a bootable device. So if you are downgrading Windows, you can try to run the installer in the compatibility mode for that specific Windows version.

• Look for the setup file.
• Once you find it, right-click on it and select Properties from the context menu.
• After that, go to the Compatibility tab and mark the checkbox for “Run this program in compatibility mode for:” and from the drop-down list, select either Windows 7 or Windows 8.
• You also have to check the “Run as administrator” option.
• Now click the Apply button and then click OK to save the changes made and check if it has resolved the issue or not.

Option 2 – Option 2 – Try troubleshooting compatibility

This option is almost the same as the first one except it is an alternative way of fixing the “Setup has failed to determine supported install choices” error in case the first one didn’t work. In this option, you will troubleshoot the compatibility issue.

• Look for the setup file.
• Then right-click on it and select the “Troubleshoot compatibility” from the context menu.
• After that, click on the “Try recommended setting” option. Once the process is done, the error message should be gone.

Option 3 – Try to use the setup file instead of an image

If you are running the Windows ISO image for the installation, you can try running the setup file instead. This is because when you try to install Windows from an image file directly, it has to be loaded into a virtual CD drive first, and then from there, further operations are carried out. And so, you can just bypass this mechanism to avoid getting the “Setup has failed to determine supported install choices” error.

• First, you need to extract the disk file to an accessible location.
• After that, go to Sources > Setup.exe.
• Now run the setup file to upgrade or downgrade the Windows version. Just make sure that you do run the setup file as an administrator.

Option 4 – Try to do the upgrade or downgrade in a Clean Boot state

Putting your PC in a Clean Boot state can also help when you want to upgrade or downgrade your version of Windows without any trouble because, during this state, you can start the system with a minimum number of drivers and startup programs that will surely help you in isolating the root cause of the issue.

• 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” checkbox 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” checkbox.
• 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.)
• After that, try to install the Windows Updates or upgrade again.

Option 5 – Try to use the Media Creation tool

The Media Creation tool in Windows allows you to use the ISO installation file to make a bootable device that you can use to install Windows on your PC. Note that this is kind of different from the usual installation process as it could erase your computer’s current settings and data on the primary drive. Thus, before you proceed, you need to backup all your data into some removable drive and then use the Media Creation Tool to make a bootable drive.

• After making the bootable drive, you need to plug it into your computer and then reboot.
• Next, tap the F10 or Esc key to open the boot options.
• Now set the boot priority of the removable drive the highest. Once the setup comes forth, follow the next onscreen instructions and install Windows without any problems.

If you have recently installed a new internal or external hard drive or SSD and you’ve noticed that its status on the left side of the Disk Management tool states “Unknown Not Initialized”, this indicates that Windows can’t initialize the disk and that you won’t be able to use this new SSD or hard drive. You can encounter this kind of issue randomly and not just with a new hard drive or SSD but also with existing drives. There are times when you won’t be able to find your drive or partition in the File Explorer. In such a case, you have to check the Disk Management if your drive or partition is there physically. You also have to check if you can see it as Not Initialized. If it is, then this means that the disk or partition does not have a valid signature that is if it’s not registered with the system properly. Note that a disk is registered when you format it at least once so if the disk was available before, then it could be somehow corrupted. To resolve the problem, you can try to initialize the disk manually or bring it online and add a drive letter. You can also try checking the Device Manager for issues or check the cable physically.

Option 1 – Try to manually initialize the disk

Since initializing the disk is the most common way to resolve the “Unknown Not Initialized” error, this is what you have to try first.

• To initialize the disk manually, you have to open the Disk Management from the WinX menu by tapping Win + X keys and selecting Disk Management.
• From there, you can find the non-initialized disk. Right-click on it and select the “Initialize Disk” option.
• Next, select the partition style. It is recommended that you use the MBR option instead of the GPT or GUID Partition Table.
• Now click the OK button. Your hard drive or SSD should now initialize without any problem.

Option 2 – Set the disk Online and add the Drive letter

• If the disk appears to be offline under Disk Management, right-click on it and select the Online option.
• On the other hand, if the disk is already set Online but does not have a drive letter, right-click on it and select the Change drive letter and path option.
• Select a letter that is not allocated yet.
• Once you’re done, you have the option to format the disk in either NTFS or FAT32 but if you are using a 64-bit computer, make sure that you opt for NTFS.

Option 3 – Try to check any issues in the Device Manager

It is also possible that the hard drive is not working properly due to some driver issues. Thus, it’s better if you check the Device Manager and see if that drive is listed with a yellow exclamation mark next to it. And if that’s the case, you have to right-click on that drive and select the Uninstall drive option. After that, click on Action and then run the Scan for hardware changes. It should fix the problem.

Option 4 – Try to physically check the cable

You might also want to check the physical status of the wires and see if they are connected properly or not. Specifically, you have to check two cables, such as:

• The first one is the power cable that’s connected to your SMPS.
• Next is the one that’s connected to your motherboard.

If any of the two cables are not working or missing, then it’s no wonder why your drive has an “Unknown Not Initialized” status. Thus, you need to have them replaced to fix the problem.

The Microsoft Store error 0x80073d12 occurs when you try to download software from the store. In order to solve the issue follow the presented guide step by step in the order presented.

1. Check do you have enough hard drive space for installation

   Store locates and assigned space on the hard drive before it installs the application, if there is not enough space available it will return the given error. Go to file explorer and check is there enough space available.

2. Check that game is not expansion

   If you are trying to install expansion for the game without owning the required base game, you will receive the mentioned error. Check the store page to see if there are some prerequisites for the game like other games or packs.

3. Install the game from my library

   Press Start. Open the Microsoft Store App. Click the See more … button at the top right of the MS Store app’s window. Click Download and updates on the menu. Click Downloads on the left to open My library. Then click Ready to install to open a list of apps. Click the Install button for the game app that you need to install.

4. Install on another partition

   It was reported that an error vanishes if installation is placed on another partition instead of the default C drive.

Installing a Windows 10 upgrade is definitely not an easy task since the process is not always smooth sailing and you could encounter some errors when doing so. This isn’t unusual since there are various software configurations and hardware configurations as well as services it depends on in order to properly work. So if any of them malfunctions or becomes corrupted, it will affect the process which will result in errors like the error code 0x80300002. When you encounter this kind of Windows Update error, you will see the following error message on your screen:

“We couldn’t install Windows in the location you choose. Please check your media drive. Here’s more info about what happened: 0x80300002”

You can encounter this kind of error if there is corruption in the partition table of the drive where the installation is in progress. In addition, corruption on the Media device could also cause this problem. So if you encounter this error when running Windows Setup, read on as this post will guide you in fixing it. There are several ways to resolve this issue. The first thing you can do is to verify the compatibility between the BIOS and the installation media. You could also try recreating all the partitions as well as recreating the bootable USB drive. For more detailed information, follow the given options below.

Option 1 – Check if the BIOS is compatible with the installation media

The first thing you can do to fix the error is to check if there are any compatibility issues between the BIOS and the installation media you’re using. This is actually one of the most likely reasons why you’re getting the error since this is a complicated point for the Windows installation process. If the installation media is based on GPT, then your BIOS must be based on UEFI. So if you have your bootable media with the MBR partitioning, you need to set your BIOS to Legacy.

• In the Windows Search box, type “command prompt” and from the search results that appear, right-click on Command Prompt and select the “Run as administrator” option.
• After that, execute this command: exe /convert /allowfullOS
• Now, wait until the process is completed since you can track its process on your screen.
• Once it’s done, go to Settings > Update & Security > Advanced Startup options and from there, click on Restart Now. This will restart your computer and give you advanced options.
• Next, select Troubleshoot > Advanced Options where you will see further options including System Restore, Startup Repair, Go back to the previous version, Command Prompt, System Image Recovery, and UEFI Firmware Settings.
• Now select the “Legacy” option. This will take you to the BIOS. Boot Mode is typically available under Boot > Boot Configuration. Once you’re there, set it to Legacy and then save the changes you’ve made. After that, your computer will restart.

Option 2 – Try recreating a new bootable drive

• Insert your USB drive into your PC.
• Tap the Win + R keys to open the Run dialog box and type in “cmd” and tap Enter to open the Command Prompt. Alternatively, you can also search for “cmd” in the Cortana search box to open Command Prompt.
• Once you’ve opened CMD, type in this command to open the DISPART utility – diskpart
• After that, you should see a new black and white window that would say, “DISKPART>”.
• Next, type in “list disk” in the command line and tap Enter to see the list of all the Storage devices as well as your hard disk connected to your PC. Here, you have to identify your disk’s number.
• Type in this command where “X” is the disk number you have identified and then tap Enter – disk X
• Type in this command and hit Enter to clear the table records and all the visible data on the drive – clean
• Now you have to recreate a new primary partition of the drive so you’ll have to type in this command and tap Enter right after – create part pri
• A new primary partition has been created so you have to select it by typing this command and tapping Enter – select part 1
• Now you have to format it to make it visible to normal users by typing – format fs=ntfs quick

Note: If your platform supports the Unified Extensible Firmware Interface or UEFI, replace the “NTFS” with “FAT32” in the command on Step 10.

• After that, type in this command and tap Enter after – active
• Finally, type this command and hit Enter to exit the utility – exit
• After you prepare the image for the operating system, save it to the root of your USB Storage device.

Option 3 – Try to recreate all the partitions

If none of the first two options given above worked, then you can try to recreate all the partitions instead. All you have to do is restart the Windows installation process and wait until you get to the part that says, “Where do you want to install Windows?”. From there, you will see options like delete, format, extend, create new partitions, and many more. Now you have to select the Delete all the partitions options and then use the “New” button to create new partitions. Just make sure that you have one primary partition at least where you can install Windows 10. After that, continue the installation of Windows on the new partition. Keep in mind that when you create a new partition, it also recreates the partition table configuration which means that the chances of getting an error are very unlikely.

If you are testing your headphone or your speaker but all of a sudden encountered an error that says, “Failed to play test tone” in your Windows 10 computer, worry not for this post will walk you through how you can fix this problem. The test tone is used to check the right-left balance of the headphones and speakers in your computer, however, if you are not able to use it, there are several options you can check out. You can try to run the Playing Audio troubleshooter or restart the services that are related to Windows Audio. Aside from these, you could also disable Audio Enhancements or you could also change the default test tone rate and bit depth.

Option 1 – Try to run the Playing Audio Troubleshooter

Since the Windows 10 operating system has the Playing Audio Troubleshooter, you can use this troubleshooter to try and fix the problem with the “No Audio Output Device is installed” error. You can access this tool in the Control Panel or in the Taskbar Search and even on the Troubleshooters page of Windows 10. Run this troubleshooter and see if it can fix the issue or not.

Option 2 – Try to restart the Windows Audio-related services

The next thing you can do to fix the problem is to restart the services related to Windows Audio. Although the audio services start automatically on every system boot, there are times when they might fail to start. Thus, you can start these services manually by following 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 Services Manager.
• Then look for the services named “Windows Audio” and “Windows Audio Endpoint Builder”.
• Double click on each one of these services and check if their Service Status is set to Running or not and also check if the Startup Type is set to Automatic.
• If none of the services are running, just click on the Start button and select the Automatic option from the drop-down menu.
• Now click on the Apply and OK buttons to save the changes made and then check if the error is fixed.

Option 3 – Try to update the Audio driver

You might also want to consider updating or the Audio driver as it could help in fixing the error.

• Tap the Win + R keys to open the Run dialog box and then type in devmgmt.msc and tap Enter or click OK to open the Device Manager.
• Expand the section for the outdated device drivers.
• And then select the outdated driver(s) and right-click on it/them.
• From the drop-down menu, select the Update Driver option and follow the on-screen instructions to install the latest version of the driver.
• Then also click on the option, “Search automatically for updated driver software.
• Restart your PC after the installation.

Note: If updating or reinstalling the Audio driver didn’t work, you can go to the manufacturer’s website and look for the support section where you can download the drivers for your computer. You just need to take note of your PC’s correct model and model number so you can find the appropriate driver.

Option 4 – Try changing the default test tone rate and bit depth

Windows selects a default test tone rate and bit depth depending on your headphone or speaker. This allows you to look for the best sound quality from your audio output device. So if your headphone or speaker has some problems with the default settings, then it’s no wonder why you’re getting the “Failed to play test tone” error. To fix this, you can try to change the default test tone rate and bit depth by following the steps below.

• First, you need to open the Windows Settings panel and then go to System > Sound.
• Next, look for the Device properties option located on your right-hand side and click on it.
• After that, select the Additional device properties option and go to the Advanced tab.
• From there, select a different test tone rate and bit depth and then click on the Test button.
• Once done, check if it was able to fix the problem or not.

Option 5 – Try disabling the Sound or Audio enhancements

To make your operating system’s specific hardware sound nothing but perfect, both Microsoft and third-party vendors have shipped audio enhancement packages which are usually referred to as “Audio Enhancements” in Windows 10. However, there are instances when instead of improving the sound or audio quality of your computer, it can cause problems so to fix the problem you need to turn off these audio enhancements. How? Simply follow the steps below.

• Type in “Sound” in the taskbar search and then from the list of results, select “Sound Control Panel”.
• After clicking Sound, the Sound properties box will pop up. From there, go to the Playback tab and right-click on the default device i.e. Speakers or Headphones then select Properties.
• After that, the Speakers properties box will appear. From there, go to the Enhancements tab and select the checkbox for the “Disable all enhancements” option.