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...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix WinSCP 'Permission Denied' for Root User
If you're seeing a 'Permission denied' error in WinSCP when trying to connect as root, the issue ...
Fix Windows Search 502 Bad Gateway After Update
After a recent Windows Update, you might see a “502 Bad Gateway” error when using Windows Search....
How to Fix Outlook Rate Limit Error When Sending Emails
If you see an error like “You’ve reached the limit for sending email” or “Try again later” when s...
Fix Windows Security Path Not Found Error
When you try to open Windows Security (formerly Windows Defender Security Center) and see a messa...
How to Clear Windows Defender Cache with a Tool
If Windows Defender is acting up—showing incorrect threat history, failing to update, or consumin...
Issue queue
SitemapUbuntu Chrome Won't Open: Troubleshooting Guide
Fix Windows Search 'Connection Refused' Registry Error
Fix Chrome Profile Login Loop Without Losing Bookmarks
Windows Terminal Hangs at Startup Troubleshooting
Windows Security Access Denied Error Guide
How to Fix Task Scheduler Missing Tasks After Reboot
Fix Permission Denied in Task Scheduler
Fix Windows Update Stuck on Configuring 30% Complete
How to Reactivate Windows 10 After an Update
Fix Windows Search Not Working After Migration
Resolve Windows Update Credential Failure
How to Fix Expired Token in Task Scheduler
Fix Windows Search 'Connection Refused' Registry Error
Fix Chrome Profile Login Loop Without Losing Bookmarks
Windows Terminal Hangs at Startup Troubleshooting
Windows Security Access Denied Error Guide
How to Fix Task Scheduler Missing Tasks After Reboot
Fix Permission Denied in Task Scheduler
Fix Windows Update Stuck on Configuring 30% Complete
How to Reactivate Windows 10 After an Update
Fix Windows Search Not Working After Migration
Resolve Windows Update Credential Failure
How to Fix Expired Token in Task Scheduler