all windows 7 is a hype ploy for you to upgrade to another operating system i found its not as fast as windows xp pro ,running on the same machine with same software,memery,i check hard drive speed test,and reasorces was at 50 to 60% compare too 10 to 20% now using 64 bit processor it was very fast more bits processing but then alot more power usage meen less battery life or much larger battery then adds more weight i found out most like because of its the lastest operating system ,like wanting the lastest car or ? what happen when windows 8 come out i guess windows 7 nobody will like,and then windows 9 the same thing and so on,just so microsoft can make money by adding a feature if you look at all the professional robots on the markets made by the best robot engineers will not see them using a windows 7 or 64 bit and companies knows about windows 7,so ask your self why they not using it,doesnt cost more money to add it