How do I fix Microsoft update errors?

The next step is to restart your computer. Using the Ctrl + R key, open the Run dialog. Type msconfig and hit Enter. Once you've opened the msconfig utility, choose the General tab. On the Service tab, check the option Hide Microsoft services. Then, click Disable all and select OK. Once this step is complete, restart your computer.

See also - https://emailspedia.com/potential-windows-update-database-error-detected/