Checklists for software errors, setup, and tool workflows.

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Fix Microsoft Teams Token Expired Authentication Failed Error

You're signed into Microsoft Teams and suddenly get a message saying your token has expired or au...

How to Install Windows Security on Ubuntu (via Virtual Machine or Wine)

If you're looking to run Windows Security (Microsoft Defender) on Ubuntu, you've hit a fundamenta...

Fix Windows Activation Failed to Start Command Line Repair Tool

When Windows activation fails, you might see an error that the command line repair tool cannot st...

How to Fix 'File Locked' Error in Windows Terminal and CMD

You try to delete, rename, or move a file in Windows Terminal or Command Prompt, and get an error...

Fix SSH 504 Gateway Timeout in Windows Terminal

You try to SSH into a remote server from Windows Terminal and get a 504 Gateway Timeout

Fix 'Putty Connection Refused' Error on Localhost
When you try to connect to localhost with Putty and get 'connection refused', it usually means th...