Fix Windows Security 404 Not Found Permissions Issue
You open Windows Security and see a 404 Not Found error, or the app won't load at all. Often this...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesHow to Fix Git Push Non-Fast-Forward Error
You run git push and get: ! [rejected] main -> main (non-fast-forward)....
Fix OneDrive Command Line Sync Not Responding
If you run OneDrive from the command line and it hangs or shows no output, the issue is often a s...
How to Fix MySQL Connection Refused Error
When you see "connection refused" while trying to connect to MySQL, it usually means the server i...
Fix Windows Security Center Version Mismatch Errors
You open Windows Security and see a message about a version mismatch, or the Security Center serv...
Task Scheduler Configuration Checklist for Reliable Automation
You set up a scheduled task, but it doesn't run, runs twice, or stops after a few days. This happ...
Issue queue
SitemapTroubleshoot Windows Security Showing Virus Protection Off
Microsoft Teams Microphone Not Working in Meetings: Fixes
Troubleshoot Windows Security Server Error
Microsoft Teams 502 Bad Gateway Error Fix
Configure Proxy in PowerShell Scripts
How to Clear Stuck dpkg Lock in Ubuntu/Debian
JDK Not Found After Setup: Environment Variable Fix
Fix Windows Defender Can't Connect to Internet Error
How to Resolve Chrome 504 Timeout for a Single Website
Reactivate Windows After Hardware Change: Best Settings
Fix 'Chrome Browser Path Not Found Permission Denied' Error
Resolve Outlook.exe Not Recognized in Command Prompt
Microsoft Teams Microphone Not Working in Meetings: Fixes
Troubleshoot Windows Security Server Error
Microsoft Teams 502 Bad Gateway Error Fix
Configure Proxy in PowerShell Scripts
How to Clear Stuck dpkg Lock in Ubuntu/Debian
JDK Not Found After Setup: Environment Variable Fix
Fix Windows Defender Can't Connect to Internet Error
How to Resolve Chrome 504 Timeout for a Single Website
Reactivate Windows After Hardware Change: Best Settings
Fix 'Chrome Browser Path Not Found Permission Denied' Error
Resolve Outlook.exe Not Recognized in Command Prompt