Checklists for software errors, setup, and tool workflows.

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Fix 'PowerShell Not Recognized' Error on Windows

When you type powershell in Command Prompt or a script and see “powershell is not re...

Fixing Certbot Certificate Renewal Failed Error Code

You run certbot renew and get an error code instead of a renewed certificate. This i...

Fix Microsoft Teams Connection Refused on Startup

When you start Microsoft Teams and see a 'connection refused' or 'can't connect' error, it's usua...

Fix Windows Defender Access Denied in Safe Mode

You may see an 'Access Denied' error when trying to open Windows Defender in Safe Mode. This typi...

Fix 'Remote Desktop Command Not Found' in Linux

You try to start a remote desktop session from the terminal, but get command not found

How to Fix Rate Limit Errors in Windows Security App
You open Windows Security to run a scan or check protection status, and get a rate limit error. T...