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

Fix Windows Defender Authentication Error from Corrupted System Files

You open Windows Defender and see an authentication failed error. This often happens after a fail...

Fix High PowerShell Memory Usage in Windows 10

If you notice that PowerShell is consuming a large amount of memory (say, over 500 MB or more), i...

How to Fix 'Command Not Found' Errors in Ubuntu Terminal

When you type a command in the Ubuntu terminal and get 'command not found', it usually means the ...

Fix NVM Not Found in Git Bash on Windows

Fix Windows Defender Real-Time Protection Access Denied

You try to turn on Windows Defender real-time protection but get an 'access denied' message. This...

Fix Windows Activation Service Not Responding

When you try to activate Windows and see an error that the activation service is not responding, ...