Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

View list

Fix Windows 11 Activation Rate Limit Error

You're trying to activate Windows 11 and see an error like "Activation rate limit reached" or "To...

PowerShell Authentication Failed: Practical Fixes

You try to run a PowerShell command and get an authentication failed error. The message might say...

Fix Windows Search 504 Gateway Timeout and Network Reset

You run a Windows search and get a 504 gateway timeout, often after a network reset or VPN change...

Fix OneDrive Sync Error 0x8004de40: Service Unavailable

When OneDrive shows error 0x8004de40 with the message “Sync service unavailable,” it usually mean...

Fix Outlook 'Not Connecting to Server' Network Error

You open Outlook and see a persistent error: "Cannot connect to your mail server. Network err...

How to Install an SSL Certificate in Chrome Manually
You may need to manually install an SSL certificate in Chrome when testing a local development si...