
Windows Defender Service Troubleshooting Checklist
If Windows Defender won't start, won't update, or shows error messages like "Service stopped" or ...

If Windows Defender won't start, won't update, or shows error messages like "Service stopped" or ...

You're stuck in a login loop after a Windows activation or update. You type your password correct...

If you see errors like 429 Too Many Requests or Rate limit exceeded in ...

If Teams gets stuck on the loading screen, fails to start, or loops through login prompts, a corr...

If you click the Microsoft Store icon and nothing happens—no window, no error—you're not alone. T...

If you see a 502 Bad Gateway error in Chrome after resetting your browser profil...