
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...
Software troubleshooting desk

When Windows Security shows a 404 error on startup, it typically means the app can't find its req...

If you've noticed Windows Security is off or grayed out, you may need to re-enable Windows Defend...

When Windows Search throws a "404 error" or returns no results, the search index is often corrupt...

If you see a "rate limit exceeded" or similar throttling error while managing BitLocker, it usual...

When you try to unlock a BitLocker-encrypted drive on a different computer or after a Windows upg...

When Windows Security shows "Service unavailable" or a red banner, your antivirus and firewall pr...