Fixing Windows Security Proxy Configuration Issues
When Windows Security (formerly Windows Defender Security Center) can't update virus definitions ...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesHow to Fix Microsoft Teams Screen Sharing Not Working
When you try to share your screen in Microsoft Teams and nothing happens—or participants see a bl...
Fix Chrome Profile Permission Denied Error
When Chrome shows a 'permission denied' error for your profile, you can't access bookmarks, histo...
Check Which Application Is Using Remote Desktop Port (3389)
When you try to start Remote Desktop and get an error that the port is already in use, something ...
Fix Windows Activation After Hardware Change
If you recently upgraded your PC's motherboard, CPU, or hard drive and now see “Windows is not ac...
Fix Microsoft Teams High Memory and CPU Usage
You open Task Manager and see Microsoft Teams using hundreds of MB of RAM and pegging the CPU. Th...
Issue queue
SitemapHow to Resolve Task Scheduler DNS Problems in Windows 10
Chrome 504 Error Troubleshooting Guide
Fix Chrome Cache Errors on Windows 10
Windows Defender Firewall Blocking Connection: Troubleshooting Guide
How to Break a Windows Login Loop After Update
Fix 'Outlook Command Not Found' Error on Mac
How to Fix 'File Locked by System Process' in PowerShell
Fix Windows Terminal Settings for PowerShell
How to Fix Windows Defender Service Errors
Chrome DNS Error Troubleshooting for Specific Profiles
Fix Windows Search Offline Installer Missing Files Error
How to Fix Docker Image Pull Access Denied
Chrome 504 Error Troubleshooting Guide
Fix Chrome Cache Errors on Windows 10
Windows Defender Firewall Blocking Connection: Troubleshooting Guide
How to Break a Windows Login Loop After Update
Fix 'Outlook Command Not Found' Error on Mac
How to Fix 'File Locked by System Process' in PowerShell
Fix Windows Terminal Settings for PowerShell
How to Fix Windows Defender Service Errors
Chrome DNS Error Troubleshooting for Specific Profiles
Fix Windows Search Offline Installer Missing Files Error
How to Fix Docker Image Pull Access Denied