If you feel that you still have a malware problem after a regular scan, give the offline scan a try. That also means it runs before any malware processes load, so the malware is defenseless. Designed to handle persistent malware that doesn't yield to a normal scan, this scan reboots the system and runs before Windows fully loads. In addition to the expected Quick, Full, and Custom scan options, Windows Defender offers what it calls Offline Scan.
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I'll go into detail about these pages below. The main window's home screen reports security status, and offers six additional feature pages, accessed by clicking large icons across the bottom or small icons in the left rail menu. When you click the Defender icon in the notification area, it opens the full Windows Defender Security Center. Windows Defender differs from other free antivirus tools in that there's no installation required it's already present. Our latest testing suggests that Defender does a good job. We salute Microsoft for ensuring that all users have at least some degree of antivirus protection.
DIGITAL DEFENDER ANTIVIRUS REVIEWS INSTALL
If you install a third-party security solution, Windows Defender's antivirus component goes dormant, to avoid any conflict. It's always active on systems that have no other antivirus installed. The modern-day Microsoft Windows Defender Security Center protects against Trojans, viruses, ransomware, and other types of malware, but it also manages your security overall. Microsoft has included antivirus protection in its operating systems for ages, going all the way back to DOS.