How to Fix Error 421

Ehshell.exe Application Error - What is it?

Ehshell.exe is a type of .exe (executable file). This file functions as an essential component of the Microsoft Media Center.  By default, it is located in a subfolder of C:\Windows. Ehshell.exe application error is an error code that pops up when tasks in the Media Center freezes. The Ehshell.exe application error is usually displayed on the screen in the following format:

“ehshell.exe – Common Language Runtime Debugging Services Application has generated an exception that could not be handled. Process id=0xa18 (2584), Thread id=0xa24 (2596).”

Solution

Error Causes

Ehshell.exe application error is triggered when PC users perform repetitive tasks in Media Center on a Windows XP Media Center Edition. The computer stops to respond and the error message is displayed. This error occurs if users perform one or more of the following repetitive tasks in the Media Center:

• Repeated resize, restore and minimize the Media Center Window
• Schedule TV shows to record
• Repeatedly change the channel while Media Center is in a window
• Ehshell.exe file corruption due to malware infection or registry issues

Though this is not a fatal error, to avoid any kind of inconvenience, it is advisable to fix the error right away.

Further Information and Manual Repair

To fix the ehshell.exe application error on your system, you don’t have to hire a professional and spend hundreds of dollars on repair. Here are some of the best and most effective do-it-yourself methods that you can try to resolve this issue on your PC immediately.

Method 1 - Install the Latest Service Pack for Microsoft Windows

To repair the issue, install the latest Windows service pack. A service pack is basically a Windows update, often combines previously released updates that help make Windows more reliable. These are offered free of charge on Microsoft’s official website.  To get started, simply log on to Microsoft’s official website and download the latest service pack compatible with your Windows version. The installation process may take 30 minutes to install. And you will be prompted to restart your PC about halfway through the installation process. Once the Windows Service Pack is installed, the ehshell.exe application error will be fixed. If the error still persists, then try method 2.

Method 2 - Scan for Malware

Ehshell.exe application error may also appear on your PC due to malware infection. Malware programs like viruses, Trojans, and worms deliberately give their malicious processes similar .exe file names, so it is hard to identify the malware. In such an event, it is advisable to download a powerful antivirus and scan your entire PC. Run it to remove all the hidden malware programs on your system. Once malware is removed, the ehshell.exe application error will be resolved.

Method 3 - Clean Registry

Sometimes .exe files can also get corrupt when the registry gets overloaded with unnecessary and obsolete files. If this is the underlying reason for the error code occurrence then it is advisable to download Restoro. This is a multi-functional and user-friendly PC Fixer deployed with a registry cleaner. It removed all the unnecessary files, cleans and repairs the registry in seconds thereby fixing all registry-related errors. Click here to download Total System Care and resolve the Ehshell.exe application error on your PC.

As you know, Windows 10 comes with a pre-packed feature that allows you to rotate the screen at different angles, and to facilitate this feature, there are keyboard shortcuts you can use as well. However, from time to time, no matter how useful this feature is, users still experience a handful of issues. One of which is that they suddenly find their screen rotated or Upside Down even when they didn’t do a thing or adjust the setting. You may have pressed the shortcut on the keyboard by accident or some other program changed the setting on your computer without your permission – whichever the case is, this post will show you what you can do to fix the upside-down screen on your Windows 10 PC using the options laid out below.

Option 1 – Try using hotkeys

As mentioned earlier, Windows have hotkeys in the UI that changes the orientation of the display. So the first thing you need to do is to make sure that these hotkeys are enabled and if they are, you can use the keyboard shortcut to adjust the orientation of your screen.

• Right-click on an empty part of your Desktop and then select the Graphic options.
• Next, select “Hot Keys” > “Enable”. After verifying that the hotkeys are enabled, you can tap the Ctrl + Alt + Up arrow keys to change your computer screen’s orientation.
• Alternatively, you can also tap the Ctrl + Alt + Right or Left or Down arrow keys to change the direction the other way.

Option 2 – Try using the Graphics Properties

You will probably see the “Graphics Properties” option if you use the Intel HD Graphics every time you click on your Desktop. Note that this option has all the graphics driver properties and helps you in changing the configurations as well as control several options like refresh rate, resolution, color-depth and many more. You have to navigate to these options to see if the orientation is changed in these properties. To do so, follow the steps below.

• Right-click on any empty space on your Desktop and then select Graphics Properties or Intel Graphics Settings.
• After that, select Display from the list of sub-options that appears.
• From there, you will see the rotation of the screen under the “Display settings” option where you have to make sure that the slider is set to “0”.
• Click the Apply button to save the changes made and then click on Exit. The orientation of your screen should automatically change.

Option 3 – Try using the Windows Display Settings

Since the Windows Settings have a section where you can manage the display settings of your computer, you can use them to help control the resolution of your PC’s display without any trouble. There is a possibility that the settings are changed there so that’s probably why your screen is turned upside down all of a sudden.

• Tap the Win + S keys to open search and then type in “settings” in the field and then hit Enter to open Settings.
• After opening Settings, click on System and then on Display using the left navigation bar and then scroll to the end and select the Advanced display settings.
• Next, click on the Display adapter properties and click on Intel HD Graphics control panel.
• Now change the rotation to 0 Degrees. Afterward, the display should revert back to its original form automatically.

Option 4 – Check your monitor’s physical controls

There are monitors that have buttons in them that allows users to shift the rotation of the screen to 90 degrees. It could be that your monitor has these buttons without you knowing and you suddenly pressed them by mistake which caused your screen to rotate. Thus, you have to check your monitor for any physical buttons on the side and if you see a menu, navigate to its options and check if there are screen rotation options. To make it easier for you, you can simply search your monitor’s model online and see if these buttons exist. You could also go over your monitor’s manual if you still have it as it contains details with regards to screen rotation.

Option 5 – Update your Graphics drivers

• 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 if you wish to update the driver or select the Uninstall device if you want to uninstall the driver and then follow the on-screen instructions to install the latest version of the driver.
• Restart your PC after the installation to allow the system to reinstall the driver.

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.

What Does 0x8007045D Error Code Mean?

The 0x8007045D error code is an I/O (input and output) error that is associated with the registry. It indicates that the Windows operating system has become overloaded with invalid system references in the registry. This may prevent you from executing reading and writing to and from devices successfully.

Error Causes

Registry is the main database of your PC. This portion of your computer saves all the activities that you perform on your PC including the junk files, temporary internet files, invalid entries, bad registry keys, and more. This clutters the hard disk. If the unnecessary files are not removed from the registry, it may lead to I/O errors like 0x8007045D. On the hard drive, some parts of the drive may fail to function. If this is not fixed on the time it may lead to serious disk damage and registry corruption eventually resulting in system failure. System failure can make you lose all the valuable data saved on your system for good.

How to Fix the Error Code 0x8007045D?

Error codes on your PC are like warnings. These codes indicate that your PC has some issue. Therefore ignoring it is not wise. To spare yourself from such serious PC damages, it is advisable to take correct measures timely instead of prolonging and making the situation go from bad to worse.

If, while using your computer, you encounter the ACPI.sys Blue Screen error, read on as this post will guide you in fixing the problem. The ACPI.sys file is a Windows operating system file that is related to the MSDN 2939. ACPI.sys, the Windows ACPI driver, is an inbox component of the Windows operating system. It is the one that supports the power management as well as the Plug and Play or PnP device enumeration. And so if this file ends up getting corrupted, it is known to cause a Blue Screen error. Another possible cause for the ACPI.sys Blue Screen error includes RAM issues, incompatible firmware, hard disk issues, corrupted drivers or malware infection, and so on. Here are some Blue Screen errors that can be triggered by the ACPI.sys file:

• KMODE EXCEPTION NOT HANDLED
• PAGE FAULT IN A NONPAGED AREA
• SYSTEM THREAD EXCEPTION NOT HANDLED
• IRQL NOT LESS OR EQUAL
• KERNEL DATA INPAGE
• SYSTEM SERVICE EXCEPTION

To fix the Blue Screen error associated with the ACPI.sys file, refer to the instructions provided below.

Option 1 – Try to recreate the ACPI.sys file

If the first option didn’t work, the next thing you can do is to recreate the ACPI.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. This 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 ACPI.sys and rename it to ACPI.old.

Note: As you can see, the file’s extension has changed from .sys to .old.

• Now restart your computer and check if the ACPI.sys Blue Screen error is now fixed.

Option 2 – Try to update or rollback the ACPI Driver

The first thing you can try to fix the Storport.sys Blue Screen error is 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.

• Tap the Win + X keys to open the Win X menu and from there, select the Device Manager.
• After opening the Device Manager, look for the ACPI.sys driver and right-click on it, and then select Properties.
• Next, go to the Driver section. Note that the rollback option would only be available if you’ve recently updated the ACPI.sys driver. So if you can’t see it then click on the Update Driver button.
• After that, Windows will automatically check for the problems that could be related to the Blue Screen error.
• Finally, restart your computer. It will just reinstall the device drivers automatically.

Note: You can also directly download the relevant drivers of your computer from the manufacturers’ website. So if you have an SSD, the issue might be due to an old storage driver. On the other hand, if updating the ACPI driver, didn’t work, you can also try to copy the ACPI.sys system driver file from the System32 folder of another computer that’s functioning properly and runs the same Windows OS version. Afterward, place it on your problematic computer and check if it fixes the BSOD error or not.

Option 3 – Run System File Checker or SFC scan

System File Checker or SFC is a built-in command utility that helps in restoring corrupted files as well as missing files. It replaces bad and corrupted system files with good system files. To run the SFC command, follow the steps given below.

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

The command will start a system scan which will take a few whiles before it finishes. Once it’s done, you could get the following results:

1. Windows Resource Protection did not find any integrity violations.
2. Windows Resource Protection found corrupt files and successfully repaired them.
3. Windows Resource Protection found corrupt files but was unable to fix some of them.

 Reboot your PC.

Option 4 – 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 like ACPI.sys. 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 5 – Run System Restore

• 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.

Error Code 0xc0000001 – What Is It?

Error code 0xc0000001 on Windows 10 has been reported by some users when attempting to install Windows 10. When you encounter this error, the setup will be in a loop and the error message will keep popping up.

Solution

Error Causes

If you encounter the error code 0xc0000001 while trying to install Windows 10, it most probably be due to corrupted installation file. However, it can also be caused by any of the following:”

• Damaged SAM file
• Damaged system files
• File system integrity compromised
• Damaged RAM

Further Information and Manual Repair

Here are some methods that will help you fix the error code 0xc0000001 while trying to install Windows 10. Do not perform these methods unless you’re absolutely confident you can do it properly. Otherwise, you might make things worse.

If you’re not that confident, consider seeking advice from a technical expert. If you can’t afford one, you may want to consider getting an automated software to fix the job.

Method 1: Convert drive/partition to GPT

If you need to manually wipe the drive and then convert it to GPT, follow these steps:

• Step 1: Power down your computer and put your Windows 10 installation DVD or USB drive
• Step 2: Boot your computer to the USB or DVD key in UEFI mode.
• Step 3: Once you’re at the Windows 10 Setup, press the Shift+F10 keys. This will open the command prompt window.
• Step 4: Open diskpart tool from CMD. Just type diskpart and enter.
• Step 5: Then, type the list disk on CMD again. Press enter. This will allow you to identify your computer’s drive that you want to reformat.
• Step 6: Choose the drive and reformat it by typing the following on the command prompt:

select disk <disk number> (press enter)

clean (press enter)

convert gpt (press enter)

exit (press enter)

• Step 7: Proceed with the Windows 10 Setup installation.

Note: when you’re prompted to choose the installation type, make sure to choose Custom. Then, choose unallocated space and click Next. This will automatically start the installation of Windows 10.

Method 2: Use Media Creation Tool to Perform Automatic Repair

Automatic Repair is a Windows feature/utility that allows you to fix certain system problems preventing you from installing or starting Windows. It works by scanning your computer system for any potential problem and tries to fix it.

• Step 1: Download the Media Creation Tool
• Step 2: Boot your computer using the Windows 10 DVD, or the System Repair disc. When you’re asked to press any key to boot, just press any key on your keyboard.
• Step 3: Choose the right time and the keyboard type.
• Step 4: Click Repair your computer. You’ll see this in the lower-left corner of your screen.
• Step 5: Choose Troubleshoot from Choose an option screen
• Step 6: Click Advanced options
• Step 7: Choose an automatic repair

This will automatically run the utility.

Method 3: Check Hardware Devices

Another possible reason why you are getting this error while installing Windows 10 is due to the connected external hard drives. To fix this, power down your computer. Afterward, unplug and remove all connected external hard drives. If you’re using USB device to install Windows 10, ensure your BIOS is set to boot your computer from the USB.

Method 4: Create New Copy of Windows 10 Installer

Another possible reason why you experience this error is that your copy of the Windows 10 installer is corrupted. To fix this, it’s better to create a new copy of the Windows 10 installer.

• Step 1: Go to this link
• Step 2: Click the Download tool now. Choose Run with admin privileges
• Step 3: On What do you want to do? section, choose installation media for another PC. Click Next.
• Step 4: Select edition, language, and architecture (32-bit or 64-bit).
• Step 5: Choose the media you want to use. If you want to use a USB flash drive, make sure the device at least has 5GB of free space. If you’re using an ISO file, you need to save the file first on your computer and then burn the file to a DVD.

Method 5: Use a Powerful Automated Tool

If you still encounter these errors after performing the above methods, find a trustworthy automated tool. As long as the automated tool is powerful and reliable, it will help you fix this error.

The fltmgr.sys file or the Filter Manager is the one that’s responsible in making sure that all the file stored in a computer’s hard drive stays on their respective locations and is located in C:/Windows/System32/drivers. Now when you encounter a Blue Screen of Death or BSOD error saying, “Your PC ran into a problem that it couldn’t handle, and now it needs to restart. SYSTEM_SERVICE_EXCEPTION”. This kind of Stop error is due to an error with the driver that’s responsible for enabling the communication between the hardware and the computer. It indicates that this driver allows direct access to the internal hardware from the CPU itself. What’s worse about the SYSTEM_SERVICE_EXCEPTION BSOD error is that there are times when you won’t be able to log in to your computer even after it reboots. However, you need not worry as this post will guide you into fixing this BSOD error. All you have to do is follow the given options below carefully and that before you proceed make sure that you create a System Restore point just in case something goes wrong.

Option 1 – Run the Windows Update

Obviously, since the fltmgr.sys file is a system file from Microsoft, you can try running the Windows Update and see if it fixes the problem or not.

Option 2 – Run the System File Checker

The System File Checker, also known as the SFC scan, is a built-in utility in Windows that can be found in the C:/Windows/System32 folder. This tool allows you to scan and restore any corrupted system files in Windows that might be causing the SYSTEM_SERVICE_EXCEPTION BSOD error. To use this tool, follow the steps below.

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

The command will start a system scan which will take a few whiles before it finishes. Once it’s done, you could get the following results:

1. Windows Resource Protection did not find any integrity violations.
2. Windows Resource Protection found corrupt files and successfully repaired them.
3. Windows Resource Protection found corrupt files but was unable to fix some of them.

• Restart your computer and then check if it has fixed the error or not.

Option 3 – Run the Blue Screen Troubleshooter

The Blue Screen troubleshooter is a built-in tool in Windows 10 that 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 – Check your hardware for any physical issues

There are times when faulty hardware can result in serious problems in the system such as the SYSTEM_SERVICE_EXCEPTION Blue Screen error. Thus, it is highly recommended that you check the internal components of your CPU to find out if there are any problems. And if there is any physical damage, you need to bring that to a technician to get it fixed or have it replaced.

Option 5 – Run the CHKDSK utility

You can also run the Chkdsk utility to resolve the BSOD error. The Chkdsk utility is the one that repairs hard drive errors that might be causing the problem.

• Open Command Prompt with admin privileges.
• After opening Command Prompt, execute the commands listed below, and don’t forget to hit Enter right after you type in each one of them and if you have installed Windows to some different directory, you must replace “C” with the name of the drive you’ve installed Windows with.
• chkdsk C: /r /x
• chkdsk C: /f

Error Code 0x8024001b- What is it?

At its most basic level, Error Code 0x8024001b is an error that can cause problems with the installation and updates of software and operating system updates. The most common version of this error appears in Windows 10, but a similar error with a matching code number has been present in previous versions of the operating system, back through Windows 7.

Common symptoms include:

• Programs freezing or locking up during use
• The appearance of an error message regarding installation difficulties
• Computer shutting down or freezing during operation
• Difficulty in running multiple programs at the same time

Solution

Error Causes

There are two main causes for Error Code 0x8024001b, both of which are fairly simple:  Updates needed for the Windows Update tool itself and software that causes Windows Update to fail during installations through conflicts in system files. While these may seem like technical issues, these problems are actually easily resolved with a few simple steps. The average user can use the methods listed below to fix the problems on their own.

Further Information and Manual Repair

For users who want to address Error Code 0x8024001b for themselves, the steps below can be followed to address the two primary causes for the error. If you have difficulty in completing these steps or are not confident in your computing skills and ability to follow the listed steps, contact a Windows repair technician.

Here are the top methods to resolve Error Code 0x8024001b on your own:

Method One:  Check for Updates to Windows Update

In some cases, the Windows Update tool may need an update for itself. When you attempt to run updates or install wizards for other software, it can cause conflicts with the Windows Update process, slowing down your computer or causing it to freeze.

If you are attempting to run multiple installations or updates at the same time, it may also cause Error Code 0x8024001b to arise on your computer.

To resolve this issue, close out all programs, with the exception of the Windows Update tool. Within the tool, select “Check for Updates” and install any updates that are needed. When finished, you should restart your computer to ensure that all updates have been fully applied before attempting any other installations or updates.

Method Two:  Uninstall Conflicting Software

Another problem that can cause Error Code 0x8024001b is the presence of conflicting software. If Error Code 0x8024001b has only recently appeared on your computer, consider removing any software that has been added to your computer, running the Windows Update process, and restarting your computer before attempting to reinstall the problem software.

With any method that you use, it is important to remember to keep your Windows Updates current at all times. This is the best way to avoid the appearance of Error Code 0x8024001b and similar errors in the future, as stacked up updates are more likely to cause issues and conflicts with your other installed software and operating system.

While there are some tools out there that claim to be able to fix Error Code 0x8024001b for you, it is important to always thoroughly investigate the publisher and distributor of such software, as some of the tools available on the Internet will actually introduce malware and adware on your computer in the name of “protecting” your computer or resolving an error.

If you have tried to use both methods above and have not fully resolved Error Code 0x8024001b, get in touch with someone who is a qualified computer repair professional and is familiar with your particular version of the Windows operating system to assist you in finalizing your resolution.

Method Three: Use An Automated Tool

If you wish to always have at your disposal a utility tool to fix these Windows 10 and other related issues when they do arise, download and install a powerful automated tool.

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.

If you encounter a Recovery Error code 0xc000000e, “Your PC needs to be repaired” error on your Windows 10 computer, then it means that there is some hardware failure or an incorrect drive configuration. Apart from the error, it may be accompanied by different error message such as:

• A required device is inaccessible
• The selected entry could not be loaded
• A required device isn’t connected or cannot be accessed
• The selected entry could not be loaded because the application is missing or corrupt
• The boot selection failed because a required device is inaccessible.

As mentioned, the error code 0xc000000e or STATUS_NO_SUCH_DEVICE error indicates that there is a hardware failure or an incorrect drive configuration and to fix it, you have to check your cables as well as check the drive with the diagnostic utility available from the manufacturer of the drive. And if you are using older PATA (IDE) drives, then this kind of error also indicates an incorrect master/subordinate drive configuration. There could be different causes for this error. It could be that the winload.exe file is not accessible or is corrupted or that the boot location for the operating system cannot be found. Thus, for you to boot into and access the operating system, you can try the suggestions given below.

Option 1 – Try rebuilding the Boot Configuration Data (BCD) file

• Once you get to the Welcome Screen part, click on Next.
• Afterward, click on the Repair your computer option located on the bottom-left part of the window.
• Then click on Troubleshoot.
• Next, select the Advanced Options and then Command Prompt.
• Once Command Prompt has been pulled up, the following command to rebuild BCD files.

bootrec /rebuildbcd

• Once the command line is successful in finding out a Windows installation, hit Y to let it boot from the list which will successfully rebuild BCD.
• Now type “exit” to close Command Prompt and then restart your computer to successfully apply the changes made.

Option 2 – Try to run the Automatic Repair Utility

You might also want to use Automatic Repair in fixing the error code 0xC000000E. To do so, follow the steps below.

• You can start by creating and booting from a bootable Windows 10 USB Stick.
• After that, click on Repair your computer located in the bottom left corner when you are on the initial Windows Startup screen.
• Next, click on Troubleshoot, and then on the other screen, click the Startup Repair option.
• Now select the operating system you want to repair. Once you do that, it will start to repair your operating system. Wait until the process is completed and then check if the problem’s now fixed.

Option 3 – Try checking the physical device connections

You might also want to try checking if there are other devices that are connected to your PC. This is because of the configuration of the BIOS or UEFI might be configured in a way that any external device connected to the computer has a higher boot priority compared to the hard disk.  And if it’s really the case, the externally attached disk might be the drive your computer is trying to boot into and not the hard disk. In such cases, Pen Drives, USB storage devices, CDs, DVDs, and so on, are included in this category of physical device connections.

Option 4 – Try updating the BIOS

As you know, the BIOS is a sensitive part of a computer. Even though it is a software component, the functioning of the hardware depends on it largely. Thus, you must 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 5 – Try resetting the BIOS/UEFI configuration

You might also want to reset the BIOS configuration which will lead to arranging the boot configuration since it is intended by the manufacturer. Note that this will get rid of any blockage in the boot process.

Option 6 – Try marking your Disk as Online

Marking your Disk as Online can also help in resolving the error code 0xC000000E. To do so, follow the steps below.

• You need to first create a bootable Windows 10 Media and then boot from it.
• After that, click on Repair your computer on the first window of the Windows 10 installation setup.
• Now, choose the operating system partition from the options and click on Next.
• Then select Command Prompt from the System Recovery Options box.
• Next, type in “diskpart” and hit Enter to initiate the Diskpart utility inside the Command Prompt.
• Now type in either “list disk” or “list volume” and hit Enter. Either of these commands will help you in listing all the Disk connects or all the partitions on those disks formed. So you have to select one command depending on the list command you entered.
• Afterward, type in “select disk #” or “select volume #” and hit Enter to select the Disk or Partition you want to select.
• Now type in “online disk #” or “online volume #” and press Enter to mark the disk you selected as Online.