Fix Windows Security App Not Starting on Windows 11
You click the Windows Security icon or try to open it from Settings, but nothing happens. The app...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix Git Pull Unrelated Histories Error: Step-by-Step
You run git pull and see: fatal: refusing to merge unrelated histories....
How to Fix Chrome Extensions Not Loading
You open Chrome, click the puzzle icon, and your extensions are grayed out or missing. This is co...
Fixing Cloudflare 521 Error After Server Restart
You restart your server, wait for it to come back up, then visit your site—only to see a Cloudfla...
How to Reinstall Windows Security App (Microsoft Defender)
If the Windows Security app (Microsoft Defender) is missing, crashing, or not opening, reinstalli...
Fix Permission Denied When Running Script in VS Code Terminal
You try to run a script in the VS Code integrated terminal and see 'permission denied'. T...
Issue queue
SitemapAvoid MemoryError When Reading Big Files in Python
VS Code Source Control Not Showing Changes: Fix
Cloudflare SSL Full Strict Permission Denied Fix
Windows 10 Taskbar Icon Cache Repair Guide
Docker Container Exits at Startup: Entrypoint Troubleshooting
Checklist for Pushing Large Files with Git
Fix Git Not Detecting File Edits in VS Code
Windows 11 Update Stuck at 0%: How to Fix Setup Freeze
How to Enable Windows Defender Real-Time Protection via Command Line
Docker Nginx 502 Bad Gateway: Connection Refused Fix
Resolve Windows Shared Folder Credential Problems
Windows 11 Update Stuck at 0%: How to Fix with Troubleshooter
VS Code Source Control Not Showing Changes: Fix
Cloudflare SSL Full Strict Permission Denied Fix
Windows 10 Taskbar Icon Cache Repair Guide
Docker Container Exits at Startup: Entrypoint Troubleshooting
Checklist for Pushing Large Files with Git
Fix Git Not Detecting File Edits in VS Code
Windows 11 Update Stuck at 0%: How to Fix Setup Freeze
How to Enable Windows Defender Real-Time Protection via Command Line
Docker Nginx 502 Bad Gateway: Connection Refused Fix
Resolve Windows Shared Folder Credential Problems
Windows 11 Update Stuck at 0%: How to Fix with Troubleshooter