If You'll need a new app to open this windowsdefender link message appears every time you open Windows Defender, see this post.

If you use a mix of Apple, Android, and Windows gadgets, you're in luck: The security tool is now available to any Microsoft 365 subscriber.

You can now detect and block harmful third-party apps using Windows Defender Antivirus, and in this guide, we'll show you how to do it on Windows 10.