Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

View list

Fix OneDrive Sync Error 0x8004def5

OneDrive error 0x8004def5 usually appears when the sync client can't authenticate or connect to M...

Fix OneDrive Sync Login Loop on Windows 10

If you're stuck in a OneDrive login loop on Windows 10—where the sign-in screen keeps reappearing...

How to Fix Windows Defender Rate Limit Exceeded Error

If you're seeing a 'rate limit exceeded' error in Windows Defender (now Microsoft Defender for En...

How to Fix Outlook 404 Not Found Error in OWA

When you try to open Outlook on the web (OWA) and see a 404 Not Found error, it usually means the...

Fix PowerShell 'Could not load file or assembly' Error

When you run a PowerShell script or cmdlet and see an error like Could not load file or ass...

Fix Microsoft Store Connection Timeout by Resetting Settings
You open Microsoft Store to download an app or update, but it hangs on loading or shows a connect...