Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you're seeing a "502 Bad Gateway" or "Gateway Timeout" when trying to connect to a remote desk...

When you try to connect to a Windows 10 PC using Remote Desktop and get an error like "Remote Des...

When you see 'Windows activation path not found' during activation, it usually means the licensin...

When you see a 504 Gateway Timeout error in command prompt, it usually means a server upstream di...

When installing or updating PowerShell on Windows, you may encounter error code 0x800f0950<...

Fix Windows Defender Error 502 Bad Gateway
You open Windows Security and see 'Error 502 – Bad Gateway.' This usually means Windows Defender ...