Windows Defender 502 Bad Gateway: Troubleshooting Checklist
If you see a 502 Bad Gateway error when opening Windows Security or trying to update Windows Defe...
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 Error 0x80070002 Permission Denied
If you see error 0x80070002 with a "permission denied" message when running Windows Update, it us...
How to Reinstall Windows Defender in Windows 10
Windows Defender (now called Microsoft Defender Antivirus) is built into Windows 10 and typically...
Fix pgAdmin Cannot Connect to PostgreSQL on Localhost
You launch pgAdmin, try to connect to your local PostgreSQL server, and get an error like "could ...
Fix Maven Dependency Resolution: Permission Denied
When Maven fails to resolve dependencies with a 'permission denied' error, it usually points to f...
How to Clear Windows Update Cache on Mac
If you're running Windows on a Mac via Boot Camp or a virtual machine (like Parallels or VMware F...
Issue queue
SitemapHow to Resolve Remote Desktop Log File Permission Denied
How to Resolve Teams Module Error by Clearing Cache
Fix Chrome Profile Deletion Grayed Out or Not Working
How to Update Windows Security Offline
Microsoft Teams Crash Fix: Practical Troubleshooting Steps
Fix PowerShell Hanging on Profile Load
How to Fix BitLocker Device Encryption Not Available
Fix Chrome Profile Path Not Found on Mac
Fix '404 Not Found' in Windows Terminal for CMD
Resolve Windows Update Stuck on Finishing at 100%
Chrome Profile Won't Load Windows 10 Troubleshooting
Troubleshoot Microsoft Store Update Failures
How to Resolve Teams Module Error by Clearing Cache
Fix Chrome Profile Deletion Grayed Out or Not Working
How to Update Windows Security Offline
Microsoft Teams Crash Fix: Practical Troubleshooting Steps
Fix PowerShell Hanging on Profile Load
How to Fix BitLocker Device Encryption Not Available
Fix Chrome Profile Path Not Found on Mac
Fix '404 Not Found' in Windows Terminal for CMD
Resolve Windows Update Stuck on Finishing at 100%
Chrome Profile Won't Load Windows 10 Troubleshooting
Troubleshoot Microsoft Store Update Failures