Hi I have just installed win 7 ultimate 64 bit in my pc ,my pc configuration is core i3 fourth gen ,motherboard 4rth gen intel ,4 gb ram but then it doesn't show aero effect ,can someone suggest what to do . but then I got surprised by one thing ,what I found that my C drive posses two folders of programm files one normal and another having (x86) .As my copy is 64bit then how it has a programm file folder of x86?? when I tried to del that folder it said you don't have permission to del ,get permission from trustedinstaller ?? actually before of it I had another copy of ultimate which was perhaps not untouched ,so i want to know what to do further? how to delete it ?? thanks!