Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

View list

Fix Windows Defender Auto Start Not Working in Windows 10

If you find that Windows Defender isn't starting automatically when you boot Windows 10, your sys...

Fix Microsoft Store 502 Bad Gateway & Permission Denied

You open Microsoft Store and see a 502 Bad Gateway error, sometimes accompanied ...

Fix Windows Defender DNS Error After Update

After a Windows Update, you might see a Windows Defender error related to DNS—often something lik...

Microsoft Teams Update Stuck on Downloading: Fixes That Work

You're trying to open Teams, and it's been stuck on "Downloading update..." for ten minutes. The ...

Fix 'Windows Activation Command Not Found in CMD' Error

When you try to run Windows activation commands like slmgr /ato or slmgr /ipk<...

Fix Chrome Profile Download Not Working on Windows
If Chrome on Windows fails to download your profile—or any file—it usually means something is blo...