Checklists for software errors, setup, and tool workflows.

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Fix Windows Activation Blocked by Proxy Server

If Windows activation fails with an error like “We can’t activate Windows on this device because ...

Fix Windows Security Service Unavailable Permission Denied

You open Windows Security and see 'Service unavailable' or 'Permission denied'. The app may not o...

Fix Outlook Module Not Found Configuration Error

You open Outlook and see an error like "Outlook module not found" or "Configuration module not fo...

Jupyter Kernel Not Starting in VS Code: Quick Fixes

You open a Jupyter notebook in VS Code, try to run a cell, and the kernel either hangs on "Starti...

Fix 'No matching distribution found' for pip install on Python 3.10

When you run pip install somepackage on Python 3.10 and get ERROR: No matching...

Fix Windows Security Authentication Failed Smart Card Not Working
You insert your smart card, enter your PIN, and Windows Security reports “Authentication failed.”...