How to Fix Windows Defender 502 Bad Gateway Error
If you see a '502 bad gateway' error in Windows Defender, it usually means the security service c...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix Microsoft Teams SSL Certificate Error (Self-Signed Certificate)
You open Microsoft Teams and see an error like "There is a problem with your SSL certific...
Fix 'File Locked by Unknown Process' in Command Prompt
You try to delete, rename, or move a file, but Windows says it's locked by an unknown process. Th...
Fix Microsoft Store Blank Screen After Reinstalling App
If you've reinstalled an app from the Microsoft Store and now see a blank screen when opening the...
Fix Microsoft Teams Not Detecting External Webcam
You plug in your external webcam, open Microsoft Teams, and the video feed stays black or shows t...
Reset Outlook Settings: Step-by-Step Checklist
If Outlook starts crashing, failing to send emails, or displaying odd layout issues, a settings r...
Issue queue
SitemapMicrosoft Teams Version Mismatch Troubleshooting
Chrome Won't Connect to Internet but Other Browsers Work: Fix
Chrome SSL Certificate Error Only in One Profile
BitLocker No Recovery Key: Practical Fixes
OneDrive 504 Error Fix: Setup and Network Checks
Resolve 0x800f081f When Installing Updates Manually
Resolve Windows 11 Activation Timeout - Step by Step
Resolve File Locking Issues in Remote Desktop Sessions
Fix 'manage-bde' Not Recognized on Windows 11
Troubleshooting SSH Permission Denied Error
Resolve Windows Update 502 Bad Gateway with Proxy Fixes
Windows 10 Activation Stuck at Connecting to Network
Chrome Won't Connect to Internet but Other Browsers Work: Fix
Chrome SSL Certificate Error Only in One Profile
BitLocker No Recovery Key: Practical Fixes
OneDrive 504 Error Fix: Setup and Network Checks
Resolve 0x800f081f When Installing Updates Manually
Resolve Windows 11 Activation Timeout - Step by Step
Resolve File Locking Issues in Remote Desktop Sessions
Fix 'manage-bde' Not Recognized on Windows 11
Troubleshooting SSH Permission Denied Error
Resolve Windows Update 502 Bad Gateway with Proxy Fixes
Windows 10 Activation Stuck at Connecting to Network