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

How to Fix Windows Security Not Working

Windows Security (formerly Windows Defender) may fail to open, show a blank page, or refuse to up...

Fix Windows Terminal 504 Error When Connecting to Remote Server

When you use Windows Terminal to connect to a remote server (SSH, WSL, or Azure Cloud Shell) and ...

How to Stop Command Prompt from Freezing on Startup

If Command Prompt (cmd.exe) freezes or hangs shortly after opening, it's usually due to a startup...

Fix Windows Defender Token Expired in Safe Mode

If you see a 'token expired' message when trying to run Windows Defender in Safe Mode, it usually...

How to Fix Command Prompt Not Opening as Administrator

You right-click Command Prompt and select "Run as administrator," but nothing happens, or it open...

How to Fix 504 Gateway Timeout in CMD Proxy Setup