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

How to Fix Windows Security 404 Error When Opening

When you open Windows Security and see a 404 error page, it usually means the app can't find its ...

How to Fix Windows Update Stuck on Blank Screen

You restart your PC to install updates, but instead of the usual progress screen, you get a blank...

Fix PowerShell 502 Bad Gateway After Windows Update

After a recent Windows update, you may encounter a 502 Bad Gateway error when using PowerShell to...

Microsoft Teams Audio Device Setup Troubleshooting

You're in a Teams meeting, but nobody can hear you, or you can't hear them. Audio device problems...

Fix SSH 504 Gateway Timeout in Windows Terminal