Checklists for software errors, setup, and tool workflows.

Fix Windows Update Error 0x800f0831: Missing Component

When running Windows Update, you may see error 0x800f0831 with a message that a component is miss...

Fix Windows Security Module Service Not Running

You open Windows Security and see a message that the service isn't running. The shield icon in th...

How to Restore Chrome Profile After a Crash

Symptoms of a Corrupted Chrome Profile

After a browser crash, you might see errors like '...

How to Restore Windows Search Settings from Backup

If Windows Search stops working correctly—missing files, slow indexing, or wrong results—restorin...

Fix Windows Security Network Error: Permission Denied

You see "Windows Security" followed by "Access is denied" or "Permission denied" when trying to o...

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...