so why when i chuck in my mates nvidia gtx 660 in do i get 3.2gb insted of the 2.7 with the 750Ti

was installing updates or copying files to the network at this time of screen shoot HDDs are fine using 1 % when idle

its DDR2 2gb 800 MHz i think it could also be ECC memory made by rendition

i am upgradeing soon but for now i whould like to get the 3.5gb i had when in windows 7.

i have treid to turn that off and cant find it under services

i have just installed a clean version of windows 10 64 bit, i have 4gb ram but windows is hardware reserving 1.3GB. leaving me 2.7GB
My freind with the exact same build as me his windows 10 does...