Fix Windows Security 404 Not Found on Startup
When Windows Security shows a 404 error on startup, it typically means the app can't find its req...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listHow to Fix Windows Terminal Connection Timeout Errors
You're trying to connect to a remote server or start a WSL session in Windows Terminal, but it fa...
Fix Windows Terminal Version Mismatch Errors
You open Windows Terminal and see an error about a version mismatch between the terminal app and ...
Fix Remote Desktop Error 0x8007042c: Service Unavailable
When you try to connect to a remote computer and see error 0x8007042c, the remote desktop service...
How to Fix Microsoft Store Not Opening on Mac
If you're trying to open the Microsoft Store on your Mac and nothing happens—or you see a blank p...
Fixing BitLocker Dependency Conflict in Configuration Tool
If you're seeing a 'dependency conflict' error when trying to configure BitLocker in the Configur...
Topic paths
Quick titles
Fix Microsoft Store Not Launching at StartupStop SearchIndexer.exe from Using 100% CPUFix Command Prompt Not Starting in Windows 10BitLocker SSL Certificate Error: Common Causes and FixesFix Windows Security Authentication Failed ErrorHow to Activate Windows Security in Group PolicyOneDrive 404 Not Found & Permission Denied SolutionsPostman Update Broke SSL: Quick Fixes