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

Fix Windows Defender Error 0x80070422: Cannot Connect

If you see error 0x80070422 when trying to open Windows Defender Security Center, the service is ...

How to Access a BitLocker-Locked External Drive That Won't Open

You plug in an external drive that you know is BitLocker-encrypted, but instead of the usual unlo...

Fix OneDrive Sync Stuck Due to Network Issues

You open OneDrive and see "Sync pending" or "Changes not syncing" with no error code. Often the c...

How to Fix Windows Defender 504 Gateway Timeout

If you see a '504 Gateway Timeout' error when opening Windows Security or running a scan, Windows...

Fix VSCode Extension Host Terminated Error Code 0

What does this error mean?

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

Fix PuTTY Connection Refused After Server Restart

You restart your server, open PuTTY, and see "Connection refused". This is a com...