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...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Terminal Proxy Error: Connection Refused
If you see 'connection refused' when using Windows Terminal behind a proxy, the terminal is likel...
Fix Microsoft Teams High Memory Usage on Mac M1
If you're running Microsoft Teams on an Apple M1 or M2 Mac and notice it using several gigabytes ...
How to Clear Microsoft Teams Cached Credentials for Authentication
If Microsoft Teams repeatedly asks for your password, shows authentication errors, or fails to si...
Fix Windows Security Network Connection Error
You open Windows Security and see "Network connection error" or "Something went wrong." The app m...
Fix Windows Defender Conflicts with Third-Party Antivirus
You may see error messages like "Windows Defender can't start due to a dependency conflict" or no...
Topic paths
Quick titles
How to Force Delete a Locked File in WindowsOutlook Rate Limit Error on Shared Mailbox: FixesResolve Offline Installer Dependency Errors in Microsoft StoreSetting Up Windows Search Features on macOSCommand Prompt Token Expired vs PowerShell: Key DifferencesChrome Profile SSL Error: How to FixMySQL Access Denied Error Fix with Correct PasswordCommand Prompt Port Allocation Troubleshooting Checklist