Fix PostgreSQL Connection Refused on Port 5432
When you see psql: error: connection to server at ... failed: Connection refused on ...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listHow to Reset DNS Cache for Microsoft Store Issues
If the Microsoft Store won't load, shows error 0x80131500, or downloads stall, a corrupted DNS ca...
Fix 'bitlocker command not found' Error When Enabling BitLocker
When you try to enable BitLocker from the command line or a script, you might see an error like <...
Troubleshoot PowerShell Module Not Loading
When a PowerShell module won't load, you'll usually see an error like Import-Module : The s...
Fix 'nvm command not found' After Restarting Windows
You installed Node Version Manager (nvm-windows), used it successfully, then restarted your PC an...
How to Fix Windows Update Configuration Failed Rollback
You see "Windows Update configuration failed. Reverting changes." after a system restart. This us...
Topic paths
Quick titles
Chrome Profile Token Expired? Try These Fixes Beyond Clearing CacheFix Windows Terminal Stuck on Splash ScreenSolve Chrome DNS Errors: Safe Mode GuideHow to Fix Windows Security Sync Invalid ConfigurationChrome Remote Desktop Connection Troubleshooting ChecklistMicrosoft Store Error 0x80073cf3: How to Fix Installation IssuesFix Outlook Invalid Configuration Settings Not WorkingTroubleshooting Chrome Profile Error Code 0x80070002