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

Fix Microsoft Store Invalid Configuration Error

When you open Microsoft Store and get an "Invalid Configuration" error, it usually means the stor...

How to Recover a Deleted Firefox Profile Folder

If you accidentally deleted your Firefox profile folder, your bookmarks, passwords, and settings ...

Fix Windows Activation 502 Bad Gateway After Upgrade

After a Windows upgrade, you might see a '502 Bad Gateway' error when trying to activate. This us...

Fix VSCode Extension Host Terminated Error Code 0

What does this error mean?

When you see 'Extension host terminated unexpectedly with erro...

Fix Microsoft Teams Proxy Error Not Connecting

If you see "proxy error" or "not connecting" in Microsoft Teams, it usually means the app can't r...

Windows Security App Missing After Update: How to Fix

After a Windows update, you might find the Windows Security app missing from the Start menu or sy...