Windows Defender Service Troubleshooting Checklist
If Windows Defender won't start, won't update, or shows error messages like "Service stopped" or ...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix OneDrive Sync Settings That Reset After Update
After a Windows or Office update, you might notice that your OneDrive sync settings have reverted...
Fix PowerShell Path Not Found Error 0x80070002
When you run a PowerShell script or command and see 0x80070002 with a message like "...
How to Fix Microsoft Teams Connection Refused Error
When Microsoft Teams shows a 'connection refused' error, you can't sign in or use the app. This u...
Fix Windows Defender Dependency Conflict Registry Error
You might see an error like "Windows Defender can't start because of a dependency conflict" or a ...
Fix 502 Bad Gateway in Remote Desktop Connection
When you see a 502 Bad Gateway error while trying to connect via Remote Desktop,...
Issue queue
SitemapPowerShell Not Launching After Windows Update
Resolve Redis Bind Address Already in Use
How to Enable Greyed Out Defender Protection
OneDrive Stuck on Resolving File Locked Conflict
Fix Windows Update Path Not Found in CMD
Windows Defender Start Error 0x800704ec Guide
BitLocker Rate Limit Exceeded: How to Handle Waiting Time
Troubleshoot Windows Update 0x80073712
Fixing Activation Dependency Conflict in Windows
Windows Security Offline Installer Hanging Fix
Task Scheduler Proxy Permission Denied Fix
Permission Denied in Remote Desktop: Fix Dependency Issues
Resolve Redis Bind Address Already in Use
How to Enable Greyed Out Defender Protection
OneDrive Stuck on Resolving File Locked Conflict
Fix Windows Update Path Not Found in CMD
Windows Defender Start Error 0x800704ec Guide
BitLocker Rate Limit Exceeded: How to Handle Waiting Time
Troubleshoot Windows Update 0x80073712
Fixing Activation Dependency Conflict in Windows
Windows Security Offline Installer Hanging Fix
Task Scheduler Proxy Permission Denied Fix
Permission Denied in Remote Desktop: Fix Dependency Issues