Knowledge base for software setup, errors, and daily tool work.

Fix Windows Defender Blank Screen After Update

After a recent Windows update, you may open Windows Security (Windows Defender) and see a blank w...

How to Fix Windows Update Error 404 Not Found

You see error 404 when checking for updates in Windows Update. This usually means the update serv...

Fix OneDrive Not Syncing After Password Change

Changing your Microsoft account password often breaks OneDrive sync. The app may show errors like...

Fix Chrome Profile Port Already Allocated Error

Fix Chrome Freezing After Configuration Changes

If Chrome freezes or becomes unresponsive right after you change a configuration setting (like pr...