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 listHow to Enable Windows Defender via Command Prompt
If Windows Defender is disabled on your system—often due to group policy, third-party antivirus, ...
Fix Windows Security Service Not Running Error
You open Windows Security and see a red banner: “Windows Security service is not running.” Or you...
Fix Microsoft Store Module Not Found Configuration Error
You open Microsoft Store or a Store app and see an error like 'module not found' or 'configuratio...
Fix Windows Activation After Motherboard Replacement
When you replace your motherboard, Windows often treats the computer as a new device and deactiva...
How to Fix Windows Activation Stuck on Sign-In Screen
If you're stuck at the Windows sign-in screen with an activation prompt that won't go away, you'r...
Topic paths
Quick titles
Windows Defender Real-Time Protection Log Location Windows 11Motherboard Replacement Windows Activation FixFix Windows Update Path Not Found Permission ErrorFix PowerShell Invalid Configuration Permission Denied ErrorWindows Search Port Conflict After Update FixFix 'Permission Denied' Errors in PowerShell ScriptsResolving Remote Desktop DNS Permission Denied ErrorWindows Search Index Problems: Solutions