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

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

You install or update a Chrome extension, click its icon, and nothing happens—or you see a vague ...

You run npm install and see warnings about unmet peer dependencies or conflicting ve...

When Task Scheduler fails to start a task with error 1069, it usually means the service account u...

When you try to delete a downloaded file from Chrome's download bar or the Downloads page, you mi...

When Windows Update returns a 404 Not Found error, it usually means the update server can't locat...