Windows Defender is offered as a free download for Windows 7 users, and it's only an anti-spyware solution.

Some Windows 7 and 8.1 users are noticing that their automatic anti-malware protection has been turned off and are seeing out-of-date virus definitions. A definition update fix is available now.

A Windows Defender bug is reportedly negatively impacting the performance of Intel-based Windows 10 and Windows 11 PCs.

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.