I'm sure you have heard about this problem a dozen times and i hate to be a pain and ask this again, but i don't want to spend hours looking for the "same" thread. I have installed windows 7 on my dads, moms and two of my own PCs and of course; I didn't read thourgh the lisence agreement properly and might have skipped a few lines and miss the fact that i cant install Windows 7 on all the PCs with the same activation code. Can i buy three new codes (preferable download them via online)? Or do i have to buy three new Windows 7 jewel case from the store and install it again? Please answer because i hate to disappoint my parents.