There’s a possibility that your system files were corrupted or deleted recently, which causes Windows Update to fail. Outdated drivers. Drivers are needed to handle components that don’t natively come with Windows 10 compatibility such as graphic cards, network cards, and so on.

Why do Windows 10 updates fail to install?

Lack of drive space: If your computer doesn’t have enough free drive space to complete a Windows 10 update, the update will stop, and Windows will report a failed update. Clearing some space will usually do the trick. Corrupt update files: Deleting the bad update files will usually fix this problem.

What to do if updates fail to install?

If you check your Windows Update History in the Settings app and see a particular update has failed to install, restart the PC and then try running Windows Update again.