How to Check Which Process Is Using a Port in PowerShell
When a service fails to start or an application complains that a port is already in use, you need...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Maven Dependency Resolution Failed in IntelliJ
You see "Maven dependency resolution failed" in IntelliJ, often with a red underline on your
Fix Windows Update Error 0x80070020: File Locked
You try to install Windows updates but get error 0x80070020. This usually means another program o...
Fix Chrome ERR_CONNECTION_RESET Caused by Antivirus
You're browsing in Chrome and suddenly every page shows "ERR_CONNECTION_RESET". The connection dr...
How to Fix Git Permission Denied (publickey) Error
When you try to clone or push to a remote Git repository over SSH and see Permission denied...
Fix Microsoft Teams Port Already Allocated on Windows 10
When launching Microsoft Teams on Windows 10, you may see an error stating that a port is already...
Topic paths
Quick titles
Chrome SSL Certificate Error: Complete Troubleshooting ChecklistHow to Use Outlook Log Files for TroubleshootingWindows Search Throttling: How to FixFix Go Proxy Not Working with Private RepositoryChange Remote Desktop Port Back to Default 3389Windows Activation Token Expired During Reinstall: FixesFix Outlook 2019 502 Bad Gateway ErrorWindows Server Task Scheduler: Resolving 'Command Not Found' Errors