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 BitLocker Error 0x80310017: Authentication Failed
When you see the error "BitLocker authentication failed" with code 0x80310017 during startup, it ...
Checklist for PowerShell Startup Script Not Working
You set up a PowerShell script to run at startup, but it doesn't execute. This article walks thro...
Fix Windows Defender Connection Refused via Registry
When Windows Defender shows a "connection refused" error, it usually means the Windows Security C...
Fix PowerShell Access Denied for Network Path
When you run a PowerShell command that accesses a network share or remote path, you may see an 'A...
PowerShell Path Not Found After Update: Fixes
After a Windows update, you might see "The term 'powershell' is not recognized as the name of a c...
Issue queue
SitemapWindows Activation Blank Screen: System Restore Guide
Troubleshoot Windows Terminal Profile Sync Issues
Troubleshoot Outlook Error 0x8004011c
Fix Cloudflare Flexible SSL Redirect Loop
Troubleshooting Rate Limit Errors in CMD
Stop Windows Terminal from Using High CPU
Command Prompt Network Troubleshooting Guide
How to Fix Task Scheduler 'Logon as Batch Job' Permission Denied
How to Fix Windows Update Not Working After Upgrade
Windows 11 Command Prompt Service Unavailable Fix
Fix Remote Desktop DNS Error 0x800704cf
Fix PowerShell Permission Denied Error
Troubleshoot Windows Terminal Profile Sync Issues
Troubleshoot Outlook Error 0x8004011c
Fix Cloudflare Flexible SSL Redirect Loop
Troubleshooting Rate Limit Errors in CMD
Stop Windows Terminal from Using High CPU
Command Prompt Network Troubleshooting Guide
How to Fix Task Scheduler 'Logon as Batch Job' Permission Denied
How to Fix Windows Update Not Working After Upgrade
Windows 11 Command Prompt Service Unavailable Fix
Fix Remote Desktop DNS Error 0x800704cf
Fix PowerShell Permission Denied Error