Fix Windows Defender Error 0x80073b01 (Crash on Startup)
If Windows Defender crashes on startup with error code 0x80073b01, the antivirus service may be f...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix Windows Update Proxy Errors After Network Change
If you recently switched networks—say, from a corporate VPN to a home Wi-Fi—and Windows Update no...
Fix PowerShell Login Loop Error 0x80070002
If you're stuck in a login loop after signing into Windows, and PowerShell or other system compon...
Fix 502 Bad Gateway in Windows Terminal Proxy Config
If you see a 502 Bad Gateway error in Windows Terminal, it usually means your proxy ...
Fix Windows Terminal 502 Bad Gateway on Azure Connection
You're working in Windows Terminal, and when you try to connect to an Azure resource—like a VM, w...
Fix 7-Zip 'Cannot Open File' Error When Repairing Archives
When you try to repair a corrupted archive with 7-Zip and get a “Cannot open file” error, it usua...
Issue queue
SitemapWindows Update Access Denied Troubleshooting
How to Configure OneDrive Sync Behind a Proxy
Fix Outlook IMAP Settings Connection Refused
How to Fix Microsoft Teams SSL Certificate Errors
BitLocker High CPU Usage: Fixes When It's Not Working
Resolve Permission Denied in VS Code Terminal
How to Fix Remote Desktop Black Screen
Troubleshooting Command Prompt Sync Between Computers
PowerShell Service Unavailable: Quick Troubleshooting Checklist
Troubleshoot WinSCP Error 3: Permission Denied
Microsoft Store Performance Tuning Guide
Troubleshoot Node Version Errors in package.json
How to Configure OneDrive Sync Behind a Proxy
Fix Outlook IMAP Settings Connection Refused
How to Fix Microsoft Teams SSL Certificate Errors
BitLocker High CPU Usage: Fixes When It's Not Working
Resolve Permission Denied in VS Code Terminal
How to Fix Remote Desktop Black Screen
Troubleshooting Command Prompt Sync Between Computers
PowerShell Service Unavailable: Quick Troubleshooting Checklist
Troubleshoot WinSCP Error 3: Permission Denied
Microsoft Store Performance Tuning Guide
Troubleshoot Node Version Errors in package.json