Windows Security 404 Not Found: Setup and Fix Guide
When you open Windows Security (formerly Windows Defender) and see a blank page or a '404 Not Fou...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix Windows Update Service Not Running on Startup
If your PC gets stuck in an automatic repair loop and the Windows Update service is not running o...
Fix Microsoft Store Blank White Screen After Update
After a Windows update, you might open Microsoft Store and see only a blank white screen. This is...
Fix Windows Search Offline Installer Configuration Failed Error
You're trying to install Windows Search using an offline installer, but you get a 'configuration ...
Fix Microsoft Store Permission Denied Error for App Installation
When you try to install an app from the Microsoft Store, you might see a "Permission Denied" erro...
How to Fix Chrome Update Error 12 on Mac
You try to update Google Chrome on your Mac, but an error message appears: "Update failed (error:...
Issue queue
SitemapWindows Terminal Frozen? Here's How to Fix It
Windows Terminal Cache Clear Checklist and Recovery Tips
Remote Desktop Auto-Start Fails With Permission Error
Outlook 502 Bad Gateway Error Antivirus Fix
Chrome Debug Log Error Troubleshooting
Windows Update Authentication Error Credential Manager Fix
OneDrive 0x8007016a Not Syncing: Troubleshooting Guide
Windows Defender Offline Scan Not Starting in Windows 10
Microsoft Teams Configuration Error Fix Guide
Resolve Error 0x80070643 in Visual Studio Setup
How to Fix Windows Defender Firewall Blocked Error
How to Check Your Outlook Version for Mismatch Issues
Windows Terminal Cache Clear Checklist and Recovery Tips
Remote Desktop Auto-Start Fails With Permission Error
Outlook 502 Bad Gateway Error Antivirus Fix
Chrome Debug Log Error Troubleshooting
Windows Update Authentication Error Credential Manager Fix
OneDrive 0x8007016a Not Syncing: Troubleshooting Guide
Windows Defender Offline Scan Not Starting in Windows 10
Microsoft Teams Configuration Error Fix Guide
Resolve Error 0x80070643 in Visual Studio Setup
How to Fix Windows Defender Firewall Blocked Error
How to Check Your Outlook Version for Mismatch Issues