Checklists for software errors, setup, and tool workflows.

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2. Isolate

3. Apply

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Fix Windows Security Module Service Not Running

You open Windows Security and see a message that the service isn't running. The shield icon in th...

Fix DNS Server Not Responding Using Command Prompt

When you see a "DNS server not responding" error, your browser can't translate domain names into ...

Fix Chrome Installation Error 0x80070005

When installing Google Chrome, error 0x80070005 usually appears as a pop-up saying “Installation ...

PowerShell Performance Checklist for Slow Scripts

If your PowerShell script takes minutes instead of seconds, the problem is usually not the comput...

Fix Chrome Profile Network Error 'Permission Denied'

You try to launch Chrome and get an error like “The profile appears to be in use by another C...

Windows Defender 502 Bad Gateway: Troubleshooting Checklist
If you see a 502 Bad Gateway error when opening Windows Security or trying to update Windows Defe...