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

How to Fix Windows Security Not Responding

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

Fix Windows Search Not Finding Files in a Folder

You open a folder, type a filename into the search box, and Windows returns nothing—even though y...

Repair Windows Security Installation via Command Prompt

Windows Security (formerly Windows Defender) can sometimes fail to open, show blank screens, or r...

Fix 'Remote Desktop Command Not Found' After Update

How to Fix 'PowerShell Command Not Found' in Terminal

When you type a PowerShell command in your terminal and see command not found, it us...

Fix Windows Search Dependency Conflict Error 0x80070002

If you see error 0x80070002 when using Windows Search, it usually means a file or dependency is m...