Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You see a message like 'Windows Defender Authentication Failed' when trying to open or update Win...

When you see ERROR 1045 (28000): Access denied for user 'username'@'hostname' (using passwo...

Fix Chrome Profile Authentication Failed Error
You open Chrome and see "Profile authentication failed" or "Sign in to y...

Fix OneDrive Sync Error 0x8007017c on Mac
You're syncing files in OneDrive on your Mac when a notification pops up: "We can't sync this fil...

Fix Task Scheduler Error 101: Failed to Start
You see Event ID 101 in the Windows Event Viewer under TaskScheduler, and the task didn't run. Th...

Fix Microsoft Store 502 Bad Gateway Error
You open the Microsoft Store and see a blank page with a 502 Bad Gateway error. This usually mean...