Microsoft's free antivirus comes built-in to Windows 8 as Windows Defender, but it doesn't have an option to scan individual files by right-clicking on them. Our friends at the How-To Geek show us how ...

If when you attempt to run a Microsoft Defender scan on your Windows 11 or Windows 10 device, but the AV scan fails and you receive the error code 0x8007139f, then ...

If you get the Windows Defender Error 1297 when you try to launch the app or when running a scan on your Windows 11/10 device, you can try our recommended solutions ...

Update: This issue is now resolved in "Security Intelligence Update for Windows Defender Antivirus - KB2267602 (Version 1.301.1684.0)" definitions. Microsoft has released a new update for Windows ...

Famous Last Words: "This never happened before." In addition to letting Windows Defender do whatever it wants automatically, I've done Full scans whenever I remember (aspiring to weekly), with no ...

There's currently a major bug in Windows Defender, the free antivirus software that ships with Windows 10. Running a Quick or Full scan will fail after a few seconds and only go through a handful of ...

Windows Defender does a decent job of blocking malware but lacks many of the protection features found in suites like Trend Micro Internet Security.