Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

View list

Fix PowerShell Script Not Running on Startup in Windows 11

You've created a PowerShell script and placed it in the Startup folder, but it doesn't run when W...

Fix 'Command Not Found' in Task Scheduler on Windows Server

When a scheduled task on Windows Server fails with a 'command not found' error, the task typicall...

Fix Windows Update 504 Gateway Timeout Error

You see a 504 Gateway Timeout error when checking for Windows Updates. This usua...

How to Fix Windows Security Service Not Running

If you see an error that the Windows Security service is not running, the Security Center or Wind...

Fix Chrome Profile File Locked Error (Code 0x887A0006)

You try to open Chrome and get an error like "The profile appears to be in use by another...

Fix Windows Activation Blank Screen After Hardware Change
If you've recently swapped your motherboard, CPU, or other major hardware, you may hit a blank sc...