Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

When you try to activate Windows using the Settings app or a command, slui.exe (Software Licensin...

If you open Windows Security and see 'Windows Defender Service not running' or it hangs on a load...

After a Chrome update, you might see messages like "token expired" or get logged out of websites....

If OneDrive stops syncing and you see errors like "Syncing paused" or "Changes being processed," ...

If you manage BitLocker-encrypted devices and see a 504 gateway timeout when attempting to unlock...

If you're reinstalling Windows and see an activation error saying your token has expired, you're ...