/\ that! i also don't use one, guys are always asking 'what is the best antivirus?' but there isn't one the best. and the suck resources so your pc/phone/tablet gets slower.
windows server has active directory, im am teaching that right now. when you use romaing profiles you can login on all computers connected to the domain controller (the windows server) and have your own files and settings on each pc. (programs not)
i got a 760m and i also got about 35 to 40 fps with shadders. newer isn't always better? the 860m should be a bit better than the 760m (in the benchmarks).
