If your PC is off during a scheduled Windows Security scan, it'll get skipped. Use this simple registry tweak to force scans afterwards.

A bad security intelligence update causes Microsoft Defender to crash during Full and Quick Scans on some PCs. Upgrading to Security Intelligence Update v1.457.236.0 resolves the issue.

Microsoft actually wanted to close a security gap, but a current update now apparently partially paralyzes Windows Defender.

Microsoft Defender is the default antivirus software that comes pre-installed on Windows computers. It is a free and effective antivirus program that can protect your computer from malware and other ...