Checklists for software errors, setup, and tool workflows.

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Fix Jupyter Kernel Not Starting on Windows 10

When you launch a Jupyter notebook and the kernel never starts—or shows a 'Kernel error' or 'Conn...

Fix 'Port Already Allocated' Error in Windows Defender on Windows 10

You may see an error like "Windows Defender Firewall cannot use port X because it is already allo...

Fix Outlook Failed to Start Due to Corrupted Profile

When Outlook fails to start with a message about a corrupted profile, it usually means the profil...

Fix Windows Terminal 'Access Denied' When Opening a Folder

You try to open a folder in Windows Terminal — either by dragging it onto the terminal, using the...

Fix PowerShell Crash with Exit Code 0xc0000005

You launch PowerShell, it starts to load, then crashes immediately with exit code 0xc000000...

How to Fix Chrome Profile Access Denied Error (Error Code)
You see a 'Profile Access Denied' error when launching Chrome. This usually means Chrome can't re...