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.

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 Windows Defender issue is causing full, quick and offline scans to crash or fail for some Windows 11 users, potentially leaving systems vulnerable.

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

Catch up with this week's Microsoft stories in our latest recap. See what was broken by the last Patch Tuesday update, the ...

A virus scan protects PCs; however, it can sometimes slow the system down or cause it to hang while it checks thousands of files. This usually happens when the scan places a heavy load on the ...

Microsoft has resolved a bug that caused Windows Defender to crash after a recent security update, resulting in 0xc0000005 access violation errors on some affected systems. Microsoft Defender is a ...

Windows Defender is the default antivirus on Windows PCs, protecting them against threats such as malware, viruses, and more. While Windows Defender keeps track of all its actions to safeguard your PC ...

Our team tests, rates, and reviews more than 1,500 products each year to help you make better buying decisions and get more from technology. Microsoft Defender Antivirus does a decent job of securing ...