Checklists for software errors, setup, and tool workflows.

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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...

Fix Jupyter Notebook Token Not Working on Windows

When you start Jupyter Notebook (or JupyterLab) on Windows, it often opens a browser tab asking f...

SSH Permission Denied (Publickey) on EC2: Setup Fixes

If you're seeing "Permission denied (publickey)" when trying to SSH into an AWS EC2 instance, the...

How to Fix Microsoft Store Not Opening After Update

After a Windows update, the Microsoft Store may fail to open—clicking the icon does nothing, or i...

Fix PowerShell Execution Policy Error on Mac

If you see an error like “cannot be loaded because running scripts is disabled on this sy...

Windows Defender Best Settings for Maximum Security
If you want to lock down Windows Defender without causing constant false alarms or breaking every...