Microsoft has made available a new version of “Defender” to ride infected computers of malware, including rootkits which highjack your boot process and corrupt your computer.
The “Defender Offline Beta” is available from Microsoft for free [here] and does require updates as virus definitions are always changing.
Definitions are files that provide an encyclopedia of potential software threats. Because new threats appear daily, it’s important to always have the most up-to-date definitions installed in Windows Defender Offline Beta. Armed with definition files, Windows Defender Offline Beta can detect malicious and potentially unwanted software, and then notify you of the risks.
The Redmond company suggests you make a USB drive with the Defender Offline Beta software from a PC which is not infected.Â Doing so on a corrupted computer could interfere with the USB and yield the Microsoft tool useless.
To use Windows Defender Offline Beta, you need to follow four basic steps: