Microsoft Defender Offline addresses the case where malware is undetectable or unremovable because it has somehow incorporated itself into Windows system files. Point Windows Security at the Downloads folder using a custom scan. This is a fine option if you’ve just downloaded something and you want the additional reassurance of a manual scan.
You’ll note that in addition to “quick” and “full”, there’s also “custom” and “Microsoft Defender Offline scan”.Ĭustom scans allow you to specify the folder to be scanned. If your machine is misbehaving, slow, or there are just odd things happening, a full scan is a comparatively quick way to rule out malicious software as the cause. I recommend a full scan if you suspect malware has made it to your machine somehow. Other areas where malware rarely resides are bypassed. It limits its scope to files and folders on the disk that are the most common targets of malicious software. “Quick scan” is quick because it doesn’t scan absolutely everything. On the other hand, sometimes you need more. Most of the time, Windows Security’s own periodic quick scan, coupled with its real-time components scanning things as they change or are downloaded, is enough. Why run a full scan?įull scans are not something you need do often. Exactly how long this will take varies based on what else your computer is doing at the time, how fast it is, and how much data is stored. Windows Security – Scan options.Ĭlick on Full scan, and then click on Scan now.
Windows Security – Virus & threat protection.Ĭlick on Scan options.
(Click for larger image.)Ĭlick on Virus & threat protection. Windows Security icon in taskbar notification area.Ĭlick on the Windows Security icon (you may need to click the caret in the taskbar - “^” - to expose the icon). We start in the Windows taskbar notification area. Click on the Windows Security icon in the taskbar notification area.Ĭonsider a full scan whenever your machine is acting up or you suspect malicious behavior.
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