
How to Fix 'Port Already in Use' Error on Windows
When you see an error like Port 8080 already in use or Address already in use<...
Software troubleshooting desk

When you see an error like Port 8080 already in use or Address already in use<...

You've written your Python script, hit run, and got ModuleNotFoundError: No module named 'x...

When Windows Defender fails to update, you might see error codes like 0x80070643, 0x80240022, or ...

If you're seeing "token expired" in Chrome, it usually means a website can't verify your session....

You open Outlook and get: "Outlook data file cannot be accessed. Check permissions."

You're trying to activate Windows, but the activation screen just sits there saying "Activating" ...