Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you see a 504 Gateway Timeout error in Windows Terminal while accessing a ser...

When you run a command in Command Prompt and get a proxy error like ERROR: Cannot find prox...

Fix Outlook Not Connecting Due to Proxy Settings
If Outlook fails to connect, shows a "trying to connect" status, or gives a proxy-related error, ...

Fix Windows Security Virus Scan Slow Performance
If your Windows Security (formerly Windows Defender) virus scan takes forever or slows down your ...

Fix Chrome Permission Denied on Windows 10
When Chrome shows 'permission denied' on Windows 10, it usually means the browser can't access a ...

Fix PowerShell Assembly Cache Not Updating
You’ve updated a .NET assembly in the Global Assembly Cache (GAC) or copied a new DLL into a modu...