PowerShell 502 Bad Gateway: A Troubleshooting Checklist
When a PowerShell script or command returns a 502 Bad Gateway error, it usually means the web ser...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix PostgreSQL Connection Refused Due to pg_hba.conf
When a client gets 'connection refused' from PostgreSQL, the first thing to check is the pg...
Fixing OneDrive API Rate Limit Errors: A Practical Guide
You're building an app or script that calls the OneDrive API, and suddenly you start getting HTTP...
Fix Task Scheduler 'Access Denied' When Running as Admin
You set a Task Scheduler task to run with highest privileges (administrator), but it fails with a...
Fix Windows Security 404 Error & Missing Files
If you see a 404 error in Windows Security or get messages about missing files, the Security Cent...
Fix Windows Defender Not Starting Due to Dependency Conflict
If Windows Defender won't start and you see an error about a dependency service or group failed t...
Topic paths
Quick titles
Outlook 0x800ccc0f Connection Error GuideResolve Microsoft Edge Update ErrorsPowerShell Backup Restore Configuration ChecklistHow to Fix Chrome DNS_PROBE_FINISHED_NXDOMAIN ErrorTroubleshooting Error Code 0xc0000142 in WindowsFix Microsoft Store Authentication Failed Due to App PermissionsPowerShell Logging Not Working? Common FixesResolve Windows Defender Credential Loop Post-Update