Windows Security App Not Opening? Try These Steps
If the Windows Security app won't open, shows a blank screen, or crashes immediately, you'...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix Windows 11 Installation Assistant Stuck at 99%
You're running the Windows 11 Installation Assistant, it reaches 99%, and then nothing happen...
Windows 11 Installation Assistant Not Completing Setup: Fixes
You launch the Windows 11 Installation Assistant, it runs for a while, then either stalls, throws...
Fix Firefox Secure Connection Failed Error Due to Antivirus
You try to visit a website in Firefox and see a message like “Secure Connection Failed” or “PR_CO...
Fix Docker 'No Space Left on Device' from Log Files
You try to start a container or pull an image and get no space left on device. Often...
Fix npm run build Failed Due to Missing Dependencies
When you run npm run build and it fails with errors about missing dependencies, the ...
Issue queue
SitemapFixing Python UnicodeDecodeError When Reading a File
Bluetooth Hardware Not Found on Windows 11: Fixes
Troubleshoot Windows Defender Real-Time Protection Not Starting
Windows 10 Remote Desktop Setup Guide
Fix NET::ERR_CERT_AUTHORITY_INVALID by Clearing Chrome Certificate Cache
Chrome Extensions Not Loading? Try This Checklist
DNS Probe Finished NXDOMAIN: Fix When ipconfig /flushdns Fails
Resolve Chrome Status Access Violation After Update
Cloudflare 522 Timeout Error Fix Guide
Resolving Git Merge Conflicts During Pull
VS Code Git Auth Failed Fix
Windows Search Not Indexing New Files – Fix Guide
Bluetooth Hardware Not Found on Windows 11: Fixes
Troubleshoot Windows Defender Real-Time Protection Not Starting
Windows 10 Remote Desktop Setup Guide
Fix NET::ERR_CERT_AUTHORITY_INVALID by Clearing Chrome Certificate Cache
Chrome Extensions Not Loading? Try This Checklist
DNS Probe Finished NXDOMAIN: Fix When ipconfig /flushdns Fails
Resolve Chrome Status Access Violation After Update
Cloudflare 522 Timeout Error Fix Guide
Resolving Git Merge Conflicts During Pull
VS Code Git Auth Failed Fix
Windows Search Not Indexing New Files – Fix Guide