Checklists for software errors, setup, and tool workflows.

Fix Docker Build Error: 'failed to solve: manifest not found'

You run docker build and get an error like:

failed to solve: error fetching ...

PowerShell ISE Slow Loading: Troubleshooting Steps

If PowerShell ISE takes a long time to load (30 seconds or more), the issue is often caused by pr...

Fix Windows Defender Connection Refused via Group Policy

If you see a "connection refused" error when trying to open Windows Defender Security Center or r...

Fix Jupyter Notebook Token Not Working on Mac

You launch Jupyter Notebook on your Mac, see the token URL in the terminal, copy it into your bro...

Fix Jupyter Kernel Not Starting in Anaconda

When you launch a Jupyter notebook from Anaconda Navigator or the terminal, the kernel may fail t...

Microsoft Store App Installation Failed: Practical Checklist

You click Install in the Microsoft Store, and after a long wait you see “Installation failed” wit...