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

Fix Windows Defender Login Loop After Update

After a Windows update, some users find themselves stuck in a login loop when opening Windows Def...

Fix Windows Update Error 0x80070002 Permission Denied

If you see error 0x80070002 with a "permission denied" message when running Windows Update, it us...

Fix Windows Update Token Expired Permission Denied

If you see a Windows Update error saying "token expired" or "permission denied," it usually means...

Fix Microsoft Teams Microphone Not Detected in Windows

Common Causes

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 Microsoft Teams 404 Not Found Server Issue

You open Microsoft Teams and get a 404 Not Found error. The app may load partially or show a blan...