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

Fix Outlook Module Not Found Error 0x80040154

You open Outlook and get an error: 0x80040154 — "Class not registered" or "module no...

How to Fix High Memory Usage by Command Prompt (cmd.exe)

You open Task Manager and see that Command Prompt (cmd.exe) is using 500 MB or more of RAM. That'...

Fix OneDrive 404 Not Found & Permission Denied Errors

If you're seeing a '404 Not Found' or 'Permission Denied' error when accessing or syncing files i...

Fix Windows Defender Rate Limit Error Not Working

If you see a 'rate limit error' in Windows Defender and it's not working properly—scanning fails,...

How to Fix '404 Not Found' File Path Errors in CMD

Fix OneDrive File Locked by System Process

You try to edit or delete a file in OneDrive, but Windows reports it's locked by a system process...