Checklists for software errors, setup, and tool workflows.

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Fix Windows Update Service Not Running with Permission Denied

You try to run Windows Update and get an error that the service is not running. When you try to s...

How to Fix Git Detached HEAD Error

You run git status and see "HEAD detached at" followed by a commit hash. Thi...

Fix Windows Security App Missing from Start Menu

You open the Start menu, type “Windows Security,” but nothing appears. The app may have been unre...

Fix Windows Update Service Not Running After SFC Scan

If you ran an SFC scan to fix system file corruption and now the Windows Update service won't...

How to Fix Git Push Rejected: Non-Fast-Forward Merge

You run git push and get: ! [rejected] main -> main (non-fast-forward)

Windows 11 Installation Assistant Stuck at 99%: How to Reset and Finish
You're upgrading to Windows 11 using the Installation Assistant, and it gets stuck at 99% for...