Repair Fatal Error C0000034 when Applying Windows Update

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Updating your operating system is an important habit when it comes to computers and other electronic devices. Computer operating systems work efficiently when they are in sync with the latest software.

Some of the various benefits that the Windows Update Center has to offer are as follows: – The Windows Update Center fixes all the common bugs that make new software incompatible. The Windows Update Center firewall database prevents malware attacks on your beloved computer, improves computer stability, and makes software more energy efficient.

There are many known errors that can occur when performing an update. These errors can occur under many known and unknown circumstances. If any of the errors occur while upgrading, don’t be frightened or worried. Here we offer solutions to one of the standard errors that you may encounter: “Unrecoverable error c0000034”. Here is some information about the c0000034 error and ways to fix it.

Resetting Windows Update Center components to their default settings

For this solution, you must use the Windows Update agent reset tool to reset the Windows Update Center components to their default values, or use this PowerShell script to reset the Windows Update Center client. You can also manually reset all Windows Update components to their default values, and then run the upgrade again.

If this process does not solve the problem, you can try the following solution.

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Clean up your computer at startup


A third-party application or program may be interfering with your updates. In this case, you can try to completely reboot your computer to clear the fatal error C0000034 when applying the update process.

Step 1. Enter the system configuration in the search bar, navigate to it and select “Open” to open it.

Step 2: Click the “Services” tab, check the “Hide all Microsoft services” checkbox, and click “Disable all”.

Step 3: Then go to the “Start” tab and click “Open Task Manager”.

Step 4: On the Home tab of the Task Manager, select each item one by one and click “Disable” to disable it.

Step 5: Close Task Manager and restart your computer.

Now try to install the problematic updates again and check if the C0000034 error is resolved when you apply the update process.

Temporarily disable antivirus and firewall


Although it seems unlikely, some Windows update errors may be caused by your antivirus or firewall. If this is the case, you can turn off the antivirus and firewall, reboot your computer, and then try to install the update that cannot be installed. Once the update is successfully installed, you can reactivate the antivirus and firewall.

You can disable the Windows Defender and also disable the Windows Firewall. If you are using a third-party antivirus solution, you will need to disable your own firewall. Much depends on the security software you have installed. Refer to the User Manual.

Run the Windows Update Center Troubleshooter.


Select Settings > Update and Security > Troubleshooting > select Windows Update Center Troubleshooter > Run.

Windows 10 allows the user to quickly resolve technical issues affecting the operating system, including upgrade issues and errors. Try running the built-in Windows Update Center Troubleshooter to fix C0000034 error.

So, here is all the information about the solutions to the fatal error C0000034 when you apply the update process. If you encounter this error, try the above methods.

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