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 Windows Defender Update Error 0x80240022
You try to update Windows Defender, but it fails with error 0x80240022. This usually means Window...
Fix Windows Activation Offline Installer Not Working on Windows 10
You’ve downloaded the Windows 10 offline installer for activation, but it won’t run, hangs, or gi...
Windows Defender File Locked: How to Fix It
You try to edit, move, or delete a file and Windows says it's open in Windows Defender. This can ...
Fix Windows Search SSL Certificate Error via Registry
If you see an SSL certificate error when using Windows Search (e.g., searching in Outlook or File...
Fix 'Connection Refused' Errors in Command Prompt Due to Permissions
When you see 'connection refused' in Command Prompt, it usually means the remote server rejected ...
Topic paths
Quick titles
How to Turn On PowerShell Remoting in WindowsHow to Fix npm Conflicting Dependency Tree ErrorsResolve 0x80073712 Update Stuck IssuePowerShell DNS Client Error During Setup: Fixes and WorkaroundsMaven Dependency Resolution Failed: IntelliJ TroubleshootingResolve System Cannot Find Path Specified in Windows 10Fix Microsoft Teams Stuck on Connecting LoopHow to Resolve Windows Security Error 404