without buying a new copy of WIN7 PRO , Laptop came with 32 bit home prem and I upgraded to pro , but only 32 bit , can't use all the mem with 32 bit .
. I have win 7 pro 64 discs can I install that and use the serial number from the upgrade to change from 32 bit to 64 bit ?
. I have win 7 pro 64 discs can I install that and use the serial number from the upgrade to change from 32 bit to 64 bit ?