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

Fix Remote Desktop Black Screen After Connection

You connect to a remote PC via Remote Desktop (RDP) and see only a black screen. The cursor moves...

How to Fix Microsoft Teams 502 Bad Gateway Error

You open Microsoft Teams and see a 502 Bad Gateway error. This usually means a problem between th...

Fix Windows Defender Blocking Legitimate Software

You install a legitimate application, and Windows Defender immediately blocks it or deletes its f...

How to Fix Windows Update Version Mismatch Error

If you see a "version mismatch" error when trying to update Windows, it usually means the update ...

Fix Microsoft Store 404 Not Found Error on Reinstall