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

Fixing Windows Security Invalid Configuration: Practical Steps

You open Windows Security and see 'Invalid configuration' or the app won't start. This usually ha...

Fix PowerShell 502 Bad Gateway Caused by TLS Version Mismatch

If you see a 502 Bad Gateway error when running PowerShell scripts that call web...

How to Fix Abnormal Memory Usage in CMD on Windows

Outlook Migration Stuck at 99%: Practical Fixes

You're migrating an Outlook profile or exporting a PST file, and it hangs at 99% for minutes or h...

Fix Microsoft Teams Gateway Timeout Not Working

When you see a "gateway timeout" error in Microsoft Teams, it usually means the service can't rea...

Windows Update Cannot Connect to Update Server: Fixes

When Windows Update shows “cannot connect to update server,” you may see error codes like 0x80072...