Free Antivirus Software from Microsoft

[Vivek]

Download it from here.

But I think you need authentic windows in the PC, if you want to install security essentials software. Other wise your windows won't work.

[waves80]

Download it from here.

Thanks Rahul for sharing the link.

But I think you need authentic windows in the PC, if you want to install security essentials software. Other wise your windows won't work.

I have no idea, I am using authentic windows 7 and it's working fine, no problem at all.