Windows Defender Connection Refused: Troubleshooting Checklist
You open Windows Security and see "Connection refused" or "Something went wrong. Try reopening Wi...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
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View listHow to Fix Microsoft Store Update Error 0x80073cf0
You're trying to update an app in the Microsoft Store and get error 0x80073cf0. This usually happ...
How to Fix Windows Security Proxy Error
You may see a Windows Security proxy error when trying to access the internet after a network cha...
How to Fix Microsoft Store Proxy Error
You open Microsoft Store and see a message like ‘Proxy server isn’t working’ or ‘Check your proxy...
Fix Microsoft Store App Not Opening on Startup After Update
After a recent Windows update, you might find that certain Microsoft Store apps—like Mail, Calend...
Fix Windows Security Connection Refused Certificate Error
When you see 'connection refused' combined with a certificate error in Windows Security, it usual...
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