Changing from which OS? You cannot change the os or 32to 64 bits without doing a clean install. You will lose everything. 64 bits requires a 64 bit capable processor. Check your system info.
hi can any one tell me how to change the os for dell precision 670 to windows 7 64. do we have to change any settings on the setup? please  thank you
Dell precision 670 running windows 7 64 bit