Fix Windows Update Error 0xc1900403

Whether you’re using Windows Update or upgrading or installing on your Windows 10 computer, you can’t really tell if things will go smoothly as there are times when you might encounter some issues that prevent you from completing the update or upgrade or the installation. One of the errors you can encounter is error 0x80070057. Usually, when you receive this error, it means that one or more arguments are not valid. You can encounter this error in the following cases:

• Windows Update, Upgrade, or Installation
• Windows Backup, The parameter is incorrect
• Partitioning a Disk
• System Image Restore error 0x80070057
• Downloading Windows Store apps

Keep in mind that the troubleshooting steps you need to take will depend on the scenarios you are in. Thus, you need to go over each one of the troubleshooting options given below and make sure to carefully follow each one of them but before you proceed, you have to create a System Restore Point first.

Option 1 – Run the Windows Update Troubleshooter

The first thing you can do to fix error 0x80070057 is by running the Windows Update Troubleshooter. It is a built-in tool in Windows that helps users resolve any issues with Windows Update. All you need to do to run it is go to Settings and then select Troubleshoot from the options. From there, click on Windows Update and then click the “Run the troubleshooter” button.

Option 2 – Use the Registry Editor

If you get the error 0x80070057 during Windows Backup, then you need to make some modifications to the Windows Registry. To do so, follow these steps:

• Tap the Win + R keys to open the Run dialog box.
• Type “Regedit” in the field and hit Enter to open the Registry Editor.
• Next, navigate to the following registry key:

HKEY_LOCAL_MACHINESOFTWAREPoliciesMicrosoftSystem

• Then create a new DWORD value and input “CopyFileBufferedSynchronousIo” as its name and put “1” as its value.
• Close the Registry Editor and restart your computer then check if the error is fixed or not.

Option 3 – Run the DISM tool

Running the DISM Tool helps in repairing the Windows System Image as well as the Windows Component Store in Windows 10. 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.

Note: If it happens that the Windows Update client is broken, you need to run the following command to repair it then restart your PC and click on Update once again.

DISM.exe /Online /Cleanup-Image /RestoreHealth /Source:C:RepairSourceWindows /LimitAccess

Option 4 – Flush the contents of the SoftwareDistribution folder

You have to stop a couple of services such as BITS, Cryptographic, MSI Installer, and Windows Update Services. And to do that, you need to flush the contents in the SoftwareDistribution folder. The Software Distribution folder in the Windows operating system is a folder that can be found in the Windows directory and is used to store files temporarily which might be required to install the Windows Update on your PC. Thus, it is required by the Windows Update and maintained by WUAgent. Aside from that, it also contains all the Windows Update History files and once you delete them, you will most likely lose the Update history. As a result, the next time you run the Windows Update, it may result in a longer detection time.

• Open the WinX Menu.
• From there, open Command Prompt as admin.
• Then type in the following command – don’t forget to hit Enter right after typing each one of them.

net stop wuauserv net start cryptSvc net start bits net start msiserver

• After entering these commands, it will stop the Windows Update Service, Background Intelligent Transfer Service (BITS), Cryptographic, and the MSI Installer
• Next, go to the C:/Windows/SoftwareDistribution folder and get rid of all the folders and files thereby tapping the Ctrl + A keys to select them all and then click on Delete. Note that if the files are in use, you won’t be able to delete them.

Option 5 – Reset Windows Store Cache

• Right-click on the start button and click on Command Prompt (administrator).
• Next, type in the command, “wsreset.exe” and tap Enter. Once you do, the command will clear the cache for the Windows Store app.

Option 6 – Run SFC scan

Running the SFC scan or System File Checker might also help in fixing error 0x80070057.

• 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.

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.

What Is Error 106?

Error 106 is a common error experienced by Windows 7 users. Generating as a result of Misconfigured, damaged or corrupt system files on the computer, this is not a critical error. However, troubleshooting this error is important to keep any undesired inconvenience at bay. Essentially, error 106 is one of the error codes employed by Windows and other compatible driver and software vendors. The 106 in this error is essentially the memory address or location where the instructions reside when the error was generated.

Solution

Error Causes

Primarily, error 106 is caused by the damaged, Misconfigured or corrupt system files. The error may appear harmless at first. However, if allowed to persist, it can lead to grave consequences. Allowing an error to thrive on your system is synonymous with putting the well-being of your system at risk. As far as the events, conditions, or scenarios are concerned that lead to the generation of error 106, they are listed below as follows. It is important to understand that these conditions lead to the corruption of system files in most cases.

• An improper or incomplete installation or uninstallations
• Improper or incomplete deletion of hardware or applications
• Improper, unintentional or sudden system shutdown
• Existence of adware, spyware, malware, or virus on your computer

It is worth mentioning that any of the conditions listed above can lead to the corruption of system files or registry entries in the system. Since the system needs correct and complete files for proper functioning which the system will be unable to find, it will result in unexplained behavior. This also happens because the system will be lead to wrongly linked or missing information.

Further Information and Manual Repair

There are different ways to rectify this error but two of the most useful ones are briefly listed below as follows.

• This solution is for the advanced user. First and foremost, turn on your system. Log on to it as the Administrator. Now click on the start button and follow this sequence: All Programs -> Accessories -> System Tools -> System Restore.A new window will appear in front of you. On this window, choose the option, ‘Restore my computer to an earlier time’. Now click Next.A list of restore points will appear in front of you. From this list, choose the most recent Restore Point and click Next. Click Next on the confirmation windows. Restart the computer when the restoration is complete.
• This solution for the novice user. Download an error 106 windows repair utility. Now install this program on your computer and use it to scan your computer. Try to locate the option for fixing errors as soon as the scan complete. Make use of this option. Once all the errors have been fixed, restart your computer once again. You will now realize that the error has vanished and your computer is now free of error 106.

Use any of the solutions listed above according to your skill level.

In case you don’t know, the Windows Registry contains a System Hive which is a core part of Windows. The Windows operating system store various settings, options, and configurations. And if you encounter a Device Manager Error 49 for a device then it means that the system hive has exceeded its size limit. Worry not for this post will provide you with possible solutions that can help you in fixing error code 49. You will see the following error message when you encounter error code 49:

“Windows cannot start new hardware devices because the system hive is too large (exceeds the Registry Size Limit), (Code 49)”

There are instances when it may so happen that the device or devices are no longer attached to the computer but they are still listed in the system hive of the registry. For instance, if you were removing hardware and application for years but they weren’t removed from the registry then the size of the system hive keeps on growing until it hits the maximum limit. As you know, making changes in the registry manually, no matter how knowledgeable you are on such things is not sage since the registry is not only important but also complex. In addition, the System Hive is also a permanent part of the Registry associated with a set of files that contain information related to the configuration of the computer on which the OS is installed. To resolve this error, you must remove or uninstall any hardware devices that are no longer in the system. In fact, the Device Manager hides them by default so you need to enable hidden or non-present devices. Follow the instructions given below to set the Devices Manager to display devices that are no longer connected to the computer. Step 1: Tap the Win + R keys to open the Run dialog box. Step 2: After that type in “cmd” and hit Enter to open the Command Prompt. Step 3: Type “set devmgr_show_nonpresent_devices=1” in the Command Prompt and hit Enter to enable the hidden devices option. Step 4: After that, exit Command Prompt and tap Win + X + M to open the Devices Manager. Step 5: After opening the Devices Manager, click on View and then select the “Show hidden devices” option. This will show you all the devices that are not connected to the computer but are still mentioned. Step 6: Next, select a non-present device and click Uninstall from the Driver tab. Step 7: After that, repeat what you’ve done on step 5 for any other device that you no longer use. Step 8: Restart your computer. You can check the device Properties dialog box in the Device Manager after you’re done removing all the useless devices, to check if the error is now fixed or not. Moreover, you can also try running the Hardware and Devices Troubleshooter as it can also help resolve hardware-related problems. To use it, refer to the steps below.

• The first thing you need to do is click on Start and then on the gear-like icon to pull up the window for Settings.
• After opening Settings, look for the Update and Security option and select it.
• From there, go to the Troubleshoot option located on the left-hand side of the list.
• Next, select Hardware and Devices from the list and open the Troubleshooter and run it. Once it is doing its job, wait for it to complete the process and then restart the system.
• After the system restarts, check if the problem’s now fixed. If not, refer to the next option given below.

Error Code 0x800704c7 – What is it?

Error code 0x800704c7 occurs when Windows users attempt to update their system. It affects various Windows users including those using Windows 7, Windows 8, and 8.1 and Windows 10. It usually occurs due to poor maintenance of the system and includes common symptoms such as the following:

• Inability to upgrade your Windows operating system
• Message box with error code 0x800704c7

Solution

Error Causes

Error code 0x800704c7 in Windows 10 can occur due to several reasons. For instance, it may be due to corrupted or missing system files. It may also result from malicious programs affecting your system or occur when a program or several programs are running in the background of one’s system while the user attempts to run the update.

To correct this issue, Windows users will need to select one or a few methods, depending on the issues affecting their PC.

Further Information and Manual Repair

Some of the best solutions for error code 0x800704c7 available to Windows users including using tools to scan for missing systems files or correct other issues inherent within your system.

These methods may include the use of Command Prompt and the performance of technical repair procedures. If you are uncertain of your skills, avoid compounding the issue or causing further damage to your PC by contacting a skilled Windows repair technician. This IT professional will be best equipped to use Windows tools and other methods to resolve error code 0x800704c7.

Method One: Scan Your System for Missing or Corrupt System Files

Using System File Checker Tool (SFC), Windows users can check their system for missing o corrupt system files. These utility tools within your Windows device will be able to replace missing files and repair corrupted ones, resulting in a more efficient system.  Run this tool by following the steps below:

• Step One: Go to Start and type Command Prompt or CMD.
• Step Two: Run as Administrator
• Step Three: Type sfc /scannow. (Be sure to place a space between “sfc” and “/scannow”).

After running these procedures, check if the error code has been resolved. Go to Settings > Update & security > Windows Update. Update your Windows operating system. If error code 0x800704c7 reoccurs, you will need to try the next method below.

Method Two: Restore your System

System Restore is one of the best manual repair solutions Windows users can apply when they come across error codes like error code 0x800704c7. That’s because this method requires no technical or advanced knowledge and therefore can be performed by anyone. Simply follow the steps below to restore your system to a period of time in the past where the error was not present on your system. If done correctly, this could enable you to resolve the issue with little frustration on your part.

• Step one: Type Control Panel in the search bar near the Start button
• Step two: Select Control Panel, then Recovery
• Step three: Select System Restore then click Next
• Step four: Select a restore point before appeared on your Windows 10 system
• Step five: Select Next then Finish

Note that once System Restore is enabled it will remove drivers, apps, and even updates installed after the restore point. For this reason, be careful to choose the most appropriate restore point. Also once you’ve completed this task, check to see if you are able to update your system. If the update stops before the process is complete and a message box occurs with the error code 0x800704c7, proceed to the next manual repair option below.

Method Three: Check for and Remove Malware

Viruses or other forms of malware can adversely affect your system, causing error codes and other issues to take place. To resolve error code 0x800704c7 in Windows 10, check for and remove malware using a reputable anti-malware program.

If no anti-virus software is present on your system or if you scan your device but fail to spot an issue, proceed to method four.

Method Four: Use an Automated Tool

This method involves the use of a powerful automated tool. But why is this important you might ask? A third-party tool is often the best solution when all manual repair efforts fail. Automated tools come equipped to tackle the most serious PC problems including error codes which can cause frustration and result in reduces PC performance.

If you receive an error code of “0x80073afc” in Windows Defender after you boot your Windows 10 computer or when you try to manually run Windows Defender, then it could be that the Windows Defender files are corrupted. In such cases, this error could also occur if there is third-party security software that interferes with the smooth functioning of this Microsoft Security Client. If you are one of the users who are currently facing this issue, then here are some suggestions you can check out to resolve the Windows Defender error code 0x80073afc.

Option 1 – Try to check the status of all the Windows Defender-related services

• In the Cortana search box, type “services” and click on the Services icon to open the Services Manager. Alternatively, you can also tap the Win + R keys to launch the Run prompt and then type “msc” in the field and hit Enter to open the Services Manager
• After opening the Services Manager, look for the following services and make sure that their Startup type is set to their default values:
  • Windows Defender Advanced Threat Protection Service – Manual
  • Windows Defender Antivirus Network Inspection Service – Manual
  • Windows Defender Antivirus Service – Manual
  • Windows Defender Firewall Service – Automatic

• You can right-click on each one of the listed services and then select Start to start them.
• And if some of the services don’t have their default values, just double-click on the Services to change the Startup types and select the correct option from the drop-down menu of the Startup type under the Properties box.
• Next, set up the Startup type of these services to Automatic and then click on the Start button if the services are not running yet.
• Now click on the Apply and OK buttons to save the changes made and then see if it fixed the problem or not.

Option 2 – Try to re-register the concerned DLL files

You could also try to re-register some Dynamic Link Library or DLL files on your computer as this could also help in fixing the Windows Defender error.

• In the Start search, type “cmd” and from the search results that appear, right-click on Command Prompt and select the “Run as administrator” option from the context menu.
• After opening Command Prompt as admin, type the following commands one after the other:
  • regsvr32 dll
  • regsvr32 dll
  • regsvr32 dll
  • regsvr32 dll
• Once you’ve entered the commands given above, it will re-register the concerned DLL files in your system.
• Now restart your computer for the changes to take effect.

Option 3 – Try to use the Registry Editor

• Tap the Win + R keys to open the Run dialog box,
• Then type “Regedit” in the field and hit Enter to open the Registry Editor.
• Afterward, navigate to this registry path: ComputerHKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionImage File Execution Options
• Next, look for the DWORDs named “MSASCui.exe”, “MpCmdRun.exe”, “MpUXSrv.exe” and “msconfig.exe”.
• If you can’t find these DWORDs, refer to the next given option below.
• Restart your computer.

Option 4 – Check the Environmental Values

• Type “View advanced system settings” in the Windows search box and select the appropriate result.
• This will open a new mini window. From there, go to the Advanced tab and click on the “Environment Variables…” button located at the bottom part of the window.
• Next, look for the “%ProgramData%” variable name and make sure that its value is set to C:/ProgramData.
• Then click OK to save the changes made.

Option 5 – Run the System File Checker 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 to 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.

• Restart your computer.

Option 6 – Perform a System Restore

Performing a System Restore on your computer can also help you fix the Windows Defender error. You can do this option either by booting into Safe Mode or in System Restore. If you are already in the Advanced Startup Options, just directly select System Restore and proceed with the next steps. And if you have just booted your PC into Safe Mode, refer to the steps below.

• Tap the Win + R keys to open the Run dialog box.
• After that, type in “sysdm.cpl” in the field and tap Enter.
• Next, go to the System Protection tab then click the System Restore button. This will open a new window where you have to select your preferred System Restore point.
• After that, follow the on-screen instructions to finish the process and then restart your computer and check if the problem is fixed or not.

As you already know, the Windows Sandbox is one of the new features in Windows 10. However, just like other new features, it also throws up errors and one of them is the error that states,

“Windows Sandbox failed to start, Error 0x80070057, The parameter is incorrect”.

This particular error in Windows Sandbox occurs due to its dependence on numerous components of Windows 10 that are related to Hyper-V and Virtualization mainly. To fix this error, there are several options you can check out. You can try to install any pending updates on your Windows 10 computer, as well as make sure that all the services related to Windows Sandbox are enabled.

Option 1 – Try to run the Windows Updates to install pending updates

The first thing you can do to resolve the “Windows Sandbox failed to start, Error 0x80070057” is to check Windows Updates in 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.

Option 2 – Ensure that all the supporting processes and services 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
  • Virtual Disk
  • Hyper – V Virtual Machine
  • Hyper – V Host Computer Service
  • Container Manager Services
• After you find the aforementioned services, make sure to check if they are enabled or not and then restart each one of them.
• Once done, try to open the Windows Sandbox again and see if the error is fixed or not.

The Sysfader iexplore.exe Application Error - What is it?

To understand Sysfader iexplore.exe application error, first, it is important to learn what is Sysfade.exe file. Sysfader.exe is basically an IE (Internet Explorer) application file that provides cool animation effects. These animation effects include fading menus in and out, animated windows and etc. It is responsible for the graphical enhancements for animated pages. The Sysfader iexplore.exe application error occurs when this file fails to execute properly and open animated websites on Internet Explorer. The error code is displayed in the following format:

“SysFader: iexplore.exe – Application Error The instruction at “0×00000000″ referenced memory at “0×00000000″. The memory could not be “read”.”

Solution

Error Causes

The Sysfader iexplorer.exe application error may be triggered due to many causes. These include:

• Sysfader.exe file corrupted by malware and spyware
• Recently upgraded Internet Explorer which resulted in the Sysfader iexplorer.exe application error due to incompatibility issues with the system program.
• Issues with IE configuration
• Damaged registry files
• Damaged DLL files
• Obsolete and bad registry entries

Due to Sysfader iexplorer.exe application error, your Internet Explorer browser may crash. Furthermore if the error is not fixed timely, it may result in even more severe PC problems like system slowdown, system crash and failure. This happens especially when Sysfader iexplorer.exe application error is related to the registry. The registry saves all the activities performed on the computer. This also includes junk files, invalid registry entries, bad registry keys, cookies, temporary internet files, and files of the programs uninstalled. If the registry is not cleaned frequently, these obsolete files overload the RAM causing great deal of damage to the registry. When you try to upgrade your browser, the installation fails and results in browser incompatibility issues because of the previous files of the uninstalled program saved in the registry. Furthermore, the error code may also pop up due to the Sysfader.exe file corrupted by malicious software like spyware and adware on your system if you don’t run an antivirus on your system regularly.

Further Information and Manual Repair

To prevent IE web browser and your PC from coming crashing, here are some solutions that you can try to resolve the Sysfader iexplorer.exe application error:

1. Repair and restore the registry by changing the configuration settings in the Registry Editor Window. This is accessible by typing ‘Regedit’ in the Run window. However, to edit the configuration settings manually and restore the registry, you should be technically sound. If not then making the changes would be slightly complex and time-consuming for you.
2. However, another alternative to this is to download Restoro. Restoro is a powerful, advanced, and highly functional PC repair tool that includes multiple utilities such as a registry cleaner and a system optimizer. The registry cleaning feature scans your entire PC for registry issues triggering error codes like Sysfader iexplorer.exe.It wipes out all the unnecessary and obsolete files and fixes the damaged dll files thus simultaneously restoring the registry. The antivirus utility scans for and removes viruses and spyware from your PC which as we explained earlier could be the reason for Sysfader error code.

With Restoro, it takes only a few seconds to resolve this error and repair the registry. If you have system slowdown issues, it takes care of that too. It has simple navigations and a user-friendly interface which makes it very easy to operate even if you are not technically sound. It is safe, efficient, and compatible on all Windows versions including Vista, XP, Windows 7, 8, 8.1, and 10. Click here to download Restoro and resolve Sysfader iexplorer.exe application error on your PC today!

Just what is a PST File?

PST file is the acronym for Private Storage Table. It is a proprietary file structure utilized in the ms-outlook program shop and to preserve attachments as well as e-mails, notifications, scheduled calendar events, and even more. This structure can also be called a Personal Folder File. The storage limit or the size varies today with respect to the Outlook version you've got installed. The PST file size limit depends on the edition you have installed. Outlook 2002 and earlier versions have a memory limitation of 2GB while later versions such as Outlook 2013 have up to 50GB memory limit.

Error Causes

You will be amazed to discover there is not a single cause behind this problem. The File can be damaged due to a number of reasons including:

• Virus infection
• Incorrect file system recovery
• Data storage device failure
• Storage size limit exceeds
• Sometimes due to power failure when accessing the PST files

Once this File becomes corrupted and broken, it places you in danger of losing your important e-mails and attachments. Moreover, this stops you from getting or sending e-mails to and from your own associates. And in case you would like to add new contacts, you are greatly hindered. It reduces your productivity. For individuals relying completely on the Outlook program for communicating via e-mails and maintaining a track of important dates that they have set reminders for and scheduled in their calendars, the PST file problem is a nightmare. It decreases productiveness and performance.

Further Information and Manual Repair

To regain the damaged File without removing old e-mails Install a PST File Repair Tool. The latter one is probably the best way to resolve this issue without compromising on your old important emails and contacts. There are a number of repair resources out there. Each device provides a distinct degree of characteristics and performance. We urge you to use Stellar Phoenix Outlook PST Repair Tool. Not only does this repair tool aid work out PST file error that is damaged, but it also helps with data recovery. With this particular tool, it is possible to recover even the erased files you've removed from your Outlook Installation before the PST file got corrupted. Wait there is more! It is also possible to raise the memory limit by installing this repair tool on your computer. What this means is in the event the PST file corruption's cause was associated with the storage size limit, it is easily worked out. With an increase in memory, you can keep your older emails and continue storing new mail from associates. To begin, Click here to Download Install Stellar Phoenix Outlook PST Repair on your personal computer and run it to restore the PST files.

Error code 0xc000021a - What is it?

Error code 0xc000021a occurs when the system is unable to start or there’s a failure in critical system processes. Normally, it would take about several seconds for the system to boot and while on the startup process, error code 0xc000021a may take place to block the system to boot up. Users will get a blue screen of death (BOSD) when this error occurs. When upgrading to Windows 10, be careful; you might encounter other error messages such as error code 8007002c. 

Solution

Error Causes

There are several reasons why error code 0xc000021a occurs. It is important to have a full understanding of what caused the blue screen of death before attempting to fix the error by yourself. See below for a few common causes:

• Computer malware has infiltrated your device.

• Important files such as Winlogon.exe and Csrss.exe are damaged. Winlogon.exe file is responsible for handling the login and logout processes while Csrss.exe is a vital part of Microsoft Client or Server ‘Runtime Server Subsystem’. Once one of these files is damaged or deleted, a stop error will occur.

• When there are mismatched system files installed or system upgrading process failed or still incomplete.

• Premature unloading of Wbemprox.dll

• Newly installed third-party software is not compatible with the operating system.

• There are corrupted, outdated, or incorrectly configured device drivers.

• There’s insufficient space in the system partition. Once the system partition is full, certain errors such as error code 0xc000021a will manifest.

• Windows registry is corrupted or damaged due to a software or system change. This means there are registry entries that are not cleared after uninstalling an application.

Further Information and Manual Repair

In fixing error code 0xc000021a, you might want to try and manually do so. Manual repair methods can give users effective and efficient solutions, addressing the root problems in relation to Windows error codes. Once the manual repair method is correctly implemented, users will be able to resolve issues immediately. However, there might be instances when a Windows professional is needed. In such cases, seek help from a certified Windows expert or you might want to consider using an automated tool whenever necessary.

Method One: Convert the Drive or Partition from NTFS to GPT

In order to fix Error code 0xc000021a in Windows 10, you might need to convert the partition or drive from NTFS to GPT. See below for the procedure: 1. Shut down your device then put in the Windows installation USB key or DVD. 2. Boot your device to the USB key or DVD in UEFI mode. 3. Inside the Windows Setup, open a Command Prompt window by pressing Shift + F10. 4. Type diskpart in the Command Prompt window to open the diskpart tool. 5. Type list disk to identify which drive to reformat. 6. Select which drive to reformat by typing select disk in the command prompt. Afterward, type clean then hit Enter. Once done, type convert gpt to be able to convert the drive from NTFS to GPT. Finally, type exit and press Enter. You can now close the Command Prompt window. 7. Once the partition or drive is converted from NTFS to GPT, the user can now continue the Windows Setup installation. NOTE: Select Custom in choosing which installation type to use. The drive will then appear as a single area of unallocated space. Choose that unallocated space then select Next. At this point, Windows will now begin the installation.

Method Two: Fix System File Errors

There are times when system files get corrupted or damaged which will result in system failure. If this is the case, you can use a Windows free tool to repair corrupted or damaged system files. 1. Right-click on the Start button then selects Command Prompt (Admin) from the list to open a Command Prompt window. 2. Once the Command Prompt appears, type sfc /scannow then hit Enter. Wait until the process completes. If the process is completed and it doesn’t report any error or issues that remain unsolved, you might want to employ the next method.

Method Three: Reset Windows 10

Resetting Windows will delete all software and user accounts installed in the operating system and will reinstall a fresh Windows. 1. Boot your device using a Windows installation USB key or DVD. Select Repair your computer to locate the Troubleshoot option. Afterward, choose Reset this PC. NOTE: If the device is able to boot the system, you can reset Windows without using a Windows installation USB key or DVD. You just have to boot the device then navigate to Settings in the Start button. Choose Update & Recovery then select Recovery found on the left pane. Choose Reset this PC option then select Go back to an earlier build and Advanced startup. Select Get Started button found in the Reset this PC tab. 2. Depending on your device’s condition, you can either select Keep my files or Remove everything. Both options will remove all applications installed in the device and will revert to default settings. 3. Choose either Just remove my files or Remove files and clean the drive depending on the situation. If you choose the Remove files and clean the drive option, the procedure will take longer as it will erase all the files permanently. In this case, deleted files cannot be recovered. However, if you don’t want to remove files permanently, select Just remove my files. 4. Once you’ve decided how to reset your system, click on Next once the Warning screen appears. Afterward, choose Reset once prompted. When the process completed, click on Continue.

Method Four: Download an Automated Tool

Can’t seem to put up with the long and technical manual repair process? You can still fix this error by downloading and installing a powerful automated tool that will surely get the job done in a jiffy!

If you suddenly encountered an error that says, “The Task image is corrupt or has been tampered with”, along with an error code of 0x80041321, read on as this post will guide you on what you can do to resolve this problem in your Windows 10 computer. According to security experts, this kind of error has something to do with a corrupt scheduled backup task wherein each time the task service plans to execute a task, it validates a few things. And if it finds any issue with the integrity or corruption in the registry, it will mark those tasks as corrupt and throws the error 0x80041321. There are several options you can check out to fix the problem. You can try using the Registry Editor to edit and fix the corrupted tasks or you could also delete the schedule keys or the WindowsBackup file, as well as try deleting the task from the Task Scheduler or refresh the User_Feed_Synchronization. But before you of these potential fixes, make sure that you check every option and verify if it’s not associated or trying to run a file which it should not. In addition, make sure that you create a System Restore point as well so that you can undo any changes you will be making if anything goes wrong. Once you have these things covered, refer to each one of the options provided below.

Option 1 – Try to use the Registry Editor to edit and fix corrupted tasks

The first thing you can do to fix the problem is to edit those tasks via Registry Editor, as well as fix the corrupted ones in System32. Before you proceed, keep in mind that since you are dealing with the Backup triggered by the Task Scheduler, you can find the entries for the tasks in different locations. You can find the Task Scheduler at Task Scheduler Library > Microsoft > Windows > Windows Backup, whereas, you can find it in this path in the Registry Editor, HKEY_LOCAL_MACHINE SOFTWARE Microsoft Windows NT CurrentVersion Schedule WindowsBackup AutomaticBackup. On the other hand, you can find the Windows System folder at C:/Windows/System32/Tasks/MicrosoftWindows/WindowsBackup. You need to ensure that the name of the task name is the same as everywhere and take note of the name. Once you have these covered, follow the steps below.

• Tap the Win + R keys to open Run and type “Regedit” in the field and hit Enter to open the Registry Editor.
• Next, navigate to this key: ComputerHKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionScheduleTaskCacheTreeMicrosoftWindowsWindowsBackup
• From there, take note of the GUID value in the ID entry of the task under the AutomaticBackup and Windows Backup Monitor folder.
• After that, you have to remove the task registry entries related to the ID from these locations
  • HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionScheduleTaskCachePlain
  • HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionScheduleTaskCacheLogon
  • HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionScheduleTaskCacheBoot
• Once done, you have to create a temporary copy of the corrupted task file by going to this location: C:/Windows/System32/Tasks/MicrosoftWindows/WindowsBackup
• From there, look for the AutomaticBackup and Windows Backup Monitor tasks and copy them to a location where you can keep them safe.
• Next, you have to fix the corrupted task by deleting it from this location: C:/Windows/System32/Tasks/MicrosoftWindows/WindowsBackup
• After that, you have to recreate the task by going to Task Scheduler > Microsoft > Windows> Windows Backup.
• Now click on the Action menu and on Import task and navigate to the backup files and import them.
• Once you’ve created the tasks, run them manually and see if the error is now fixed.

Option 2 – Try to delete the Schedule keys in the Registry

• Launch the Registry Editor and go to this key: HKLMSOFTWAREMicrosoftWindows NTCurrent VersionSchedule
• From there, delete all of its sub-keys.
• Once done, exit the Registry Editor and check if the Backup Tasks are now working.

Option 3 – Try to remove the WindowsBackup file

The next thing you can do to fix the problem is to remove the WindowsBackup file if the first two options didn’t work. It is possible that the problem has something to do with corrupted Task files. The task files are XML files that include parameters, programs to use, and many more. If any of these files end up getting corrupted, the task scheduler will have trouble running it and will throw the “The Task image is corrupt or has been tampered with” error.

• To delete it, go to C:WindowsSystem32TasksMicrosoftWindowsWindowsBackup.
• From this location, get rid of all the files. You could also these files via Command Prompt using the DEL command.
• Once done, go to the Backup and Restore in the Control Panel and set up the Windows Backup again.

Option 4 – Try to delete the task from the Task Scheduler

If you don’t want to delete the files from Windows Explorer, you can delete them instead via Task Scheduler.

• Open the Task Scheduler and go to Task Schedule LibraryMicrosoftWindowsWindowsBackup.
• From there, delete both of the tasks and set up Windows Backup again.
• Once done, go to the Task Manager and run the AutomaticBackup task again and see if it works.

Option 5 – Try to restart the Task Scheduler service

As mentioned, it is possible that the Task Scheduler service could be disabled. You could have disabled it when trying to enhance your computer’s performance and whatnot. Thus, you need to verify if it’s running or not and then restart it.

• First, you need to tap the Win + R keys on your keyboard to open the Run dialog box.
• Next, type “services.msc” in the field and click OK or tap Enter to open the Windows Services Manager.
• You will see a list of Services and from there, look for the Task Scheduler service and double click on it.
• After that, go to the General tab and click on the Startup Type options and then select “Automatically” from the given list.
• Click on the “RUN” option and select the “Restart the Service” option.
• And click on the “After Second Failure” option and then select the “Restart-Service” option again.
• Now click on the “After Subsequent Failures” tab and select the “Restart the Service” option.
• Finally, click on the Apply and OK buttons and then run the Task Scheduler and see if the issue is now fixed.

Option 6 – Try refreshing the User_Feed_Synchronization

According to security experts, enabling and disabling the User Feed sync also known as the User_Feed_Synchronization task can help resolve the problem.

• Tap the Win + X keys and select the PowerShell (admin) option from the menu.
• Next, type the “msfeedssync disable” command and tap Enter.
• Repeat the same process but this time run the “msfeedssync enable” command.