Fix Windows Security Module Service Not Running
You open Windows Security and see a message that the service isn't running. The shield icon in th...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix Chrome Service Unavailable on Startup Error
When Chrome shows a Service Unavailable error right after you open it, the brows...
How to Fix Windows Security Not Loading
You click the Windows Security icon in the taskbar or try to open it from Settings, but nothing h...
Fix Windows Update Service Not Starting Automatically
You open Windows Update to check for patches, but it hangs or shows an error. Often the root caus...
Fix Windows Defender SSL Certificate Error Not Working
You might see an error like 'Windows Defender cannot check for definitions because of an SSL cert...
BitLocker DNS Error Checklist for IT Admins
IT admins sometimes see DNS-related errors when BitLocker attempts network unlock or contacts a r...
Issue queue
SitemapWindows Defender Real-Time Protection Stays Off Fix
Fix Chrome Access Denied Error: Step-by-Step
OneDrive Sync Proxy Error: Step-by-Step Troubleshooting
ERR_TUNNEL_CONNECTION_FAILED Troubleshooting Steps
OneDrive Sync Timeout: Common Causes and Solutions
Troubleshoot Windows Search 502 Error
Fix Microsoft Teams Camera Permission Denied Error
Fix Remote Desktop Certificate Error 0x80090322
Workaround for RDP Path Not Found Issue
Windows Search Not Working: Fix Missing Results
How to Unlock BitLocker Drive in Ubuntu Terminal
Resolve Windows Defender Authentication Failure from File Corruption
Fix Chrome Access Denied Error: Step-by-Step
OneDrive Sync Proxy Error: Step-by-Step Troubleshooting
ERR_TUNNEL_CONNECTION_FAILED Troubleshooting Steps
OneDrive Sync Timeout: Common Causes and Solutions
Troubleshoot Windows Search 502 Error
Fix Microsoft Teams Camera Permission Denied Error
Fix Remote Desktop Certificate Error 0x80090322
Workaround for RDP Path Not Found Issue
Windows Search Not Working: Fix Missing Results
How to Unlock BitLocker Drive in Ubuntu Terminal
Resolve Windows Defender Authentication Failure from File Corruption