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

Fix PuTTY Connection Refused After Server Restart

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

Fix Windows Security 504 Gateway Timeout During Windows Update

If you see a "504 Gateway Timeout" error in Windows Security while trying to run Windows Update, ...

How to Fix BitLocker Error 0x80071771

When you see BitLocker error 0x80071771, it usually means Windows cannot read or apply the recove...

Fix Task Scheduler Error 0x80070422 on Windows

When you try to run a scheduled task or open Task Scheduler, you might see error 0x80070422. This...

PowerShell Command Not Found but Works in CMD

Windows Terminal Won't Connect After Update: Fixes That Work

After a Windows Terminal update, you might see profiles that fail to connect, or the terminal ope...