If you have received an error message saying, "Microsoft Defender SmartScreen prevented an unrecognized app from starting," while launching or installing a recently ...

If Windows Defender real-time protection keeps turning on in Windows 11, turn off Tamper Protection, add the app or folder to ...

Windows Defender has several security settings, including some you need to switch on to get the utmost protection. Here's why.

Microsoft today released updates to fix at least 137 security vulnerabilities in its Windows operating systems and supported software. None of the weaknesses addressed this month are known to be ...