Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

View list

Fix Outlook 502 Bad Gateway Error in Office 365

If you're seeing a '502 Bad Gateway' error when trying to use Outlook with Office 365, it usually...

Configuring Remote Desktop Auto Start via Group Policy

If you manage a network of Windows workstations and need Remote Desktop to start automatically fo...

Fix Windows Activation Blank Screen After Update

After a Windows update, some users see only a blank screen at login. The system may be unresponsi...

Fix 'File in Use' Error When Searching in Windows Explorer

You search for a file in Windows Explorer, and instead of results, you get a 'file in use' error....

Fix 'Port Already in Use' Error in Windows 10 Command Prompt

When you try to start a local server or application and see Error: listen EADDRINUSE :::808...

Fix 'File Locked' or 'Permission Denied' During Windows Update
You try to install a Windows update, but it fails with a message like "File locked" or <...