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

Fix Windows Security Service Unavailable in Windows 11

You open Windows Security and see a red banner: 'Security service unavailable. Restart your devic...

Fix Microsoft Teams Microphone Not Detected in Windows

Common Causes

Checklist for Fixing Windows Update File Locked Errors

When a Windows Update fails with a message like "file locked" or "file in use," it usually means ...

Fix Token Expired Error in Windows Command Prompt

If you see a "token expired" error in Windows Command Prompt while using Azure CLI, PowerShell, o...

How to Fix Windows Security Not Responding

Windows Security (formerly Windows Defender Security Center) may stop responding, hang on launch,...