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

How to Fix OBS Black Screen on Mac

If you see a black screen in OBS when trying to capture your display or a specific window on Mac,...

How to Fix Windows Update 502 Bad Gateway in Windows 10

If you see a "502 Bad Gateway" error when checking for Windows updates on Windows 10, it usually ...

Fix Windows Defender Update Error 0x80070490 on Windows 11

If you see error 0x80070490 when trying to update Windows Defender on Windows 11, it usually mean...

Fix Windows Defender Error 0x80070422: Cannot Connect

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

Fix Outlook Reset Settings Permission Denied Error

How to Unlock a File in Use by Another Program in Windows

You try to delete, rename, or move a file in Windows and get an error: "The action can't be compl...