Checklists for software errors, setup, and tool workflows.

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Fix Ubuntu APT Lock Not Released After Update

After running an update or upgrade on Ubuntu, you may see an error like E: Could not get lo...

Fix Microsoft Store Dependency Conflict with PowerShell
You open Microsoft Store and see an error like 0x80073D0A or 0x80073CF6...

Fix PuTTY Connection Refused: Check SSH Service
When you see 'Connection refused' in PuTTY, it usually means the SSH server on the remote machine...

Fix Microsoft Teams Permission Denied When Restoring Backup
When restoring a Microsoft Teams backup, you may encounter a "permission denied" error. This usua...

Fix Jupyter Notebook Token Not Working on Localhost
If you see a token prompt when opening Jupyter Notebook on localhost, and entering the token fail...

Troubleshoot 502 Bad Gateway in Windows Terminal: Checklist
You're using Windows Terminal and suddenly see a 502 Bad Gateway error when tryi...

Checklists for software errors, setup, and tool workflows.

Latest checklists

Fix Ubuntu APT Lock Not Released After Update

Fix Microsoft Store Dependency Conflict with PowerShell

Fix PuTTY Connection Refused: Check SSH Service

Fix Microsoft Teams Permission Denied When Restoring Backup

Fix Jupyter Notebook Token Not Working on Localhost

Troubleshoot 502 Bad Gateway in Windows Terminal: Checklist

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