If you’re seeing the error code 0xc1420121 when you try to update Windows, it means that a driver or other software on your computer is preventing the update from completing. Here’s how to fix the problem.

How to Fix Windows Update Error Code: 0xc1420121?

What is Windows Update Error Code: 0xc1420121?

Windows Update Error Code: 0xc1420121 is a common error that can occur when attempting to update Windows. This error is typically caused by a problem with the update process itself, and can often be fixed by simply restarting the update process. In some cases, however, the error may be caused by a more serious issue, such as a corrupt file or a hardware issue. If you are seeing this error, it is recommended that you follow the steps below to troubleshoot the issue.

1. Restart your computer and try updating again. This may fix the problem if it is simply a transient error.

2. If the problem persists, try running the Windows Update Troubleshooter. This tool can automatically fix many common update errors.

3. If the troubleshooter does not fix the problem, try manually installing the updates. This can be done by downloading the updates from the Microsoft website and installing them manually.

4. If you are still seeing the error, there may be a more serious issue causing it. In this case, it is recommended that you contact Microsoft support for further assistance.

How to fix Windows Update Error Code: 0xc1420121?

If you’re seeing the 0xc1420121 error code when trying to update Windows, it means that the update process is being blocked by something on your computer. This could be a Third-Party Application, a system file, or a registry key.

To fix the 0xc1420121 error, you’ll need to figure out what’s causing the problem and then take the appropriate steps to fix it. Here are some potential solutions:

– Run the Windows Update Troubleshooter
– Delete the SoftwareDistribution folder
– Reset the Windows Update Components
– Run the DISM tool
– Install the updates manually

Conclusion

The 0xc1420121 error code is a Windows Update error that can occur when trying to install updates. There are a couple of different ways to fix this error, depending on what is causing it. One way to fix it is to simply run the Windows Update Troubleshooter and see if that can fix the issue. If that doesn’t work, you may need to reset the Windows Update components manually. You can do this by running the “net stop wuauserv” and “net stop bits” commands in the Command Prompt. Once you’ve stopped the services, you can then delete the “SoftwareDistribution” and “Catroot2” folders. After that, you can restart the services by running the “net start wuauserv” and “net start bits” commands. Once you’ve done that, try running Windows Update again and see if the problem has been resolved.

Further Reading

If the above steps do not fix the Windows Update error code: 0xc1420121, there are a few other things that can be tried. First, make sure that the Windows Update service is running. To do this, go to Start > Run, type “services.msc”, and hit Enter. Find the “Windows Update” service, right-click on it, and select “Start”. If the service is already running, try restarting it.

If the Windows Update service is running and the error code still persists, try resetting the Windows Update components. To do this, go to Start > Run, type “cmd”, and hit Enter. In the Command Prompt, type the following commands, hitting Enter after each one:

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

ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
ren C:\Windows\System32\catroot2 Catroot2.old

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

exit

After resetting the Windows Update components, try running Windows Update again to see if the error code has been fixed.

How to Fix Windows Update Error Code: 0xc1420121?