I currently have Windows 7 Home Premium set up on 4 bootable partitions out of 12, same product key on same computer (3 on one disk and the other on a different disk). Can I purchase 1 upgrade to Windows 8.1 and install it on all 4 bootable
partitions using the same Product Key. I have the 4 bootable partitions set up VERY differently and for different purpose.
normanki