Hello,
Currently I have Win 7 Premium installed and validated (#Key1). However,
I have purchase another license (#Key2) for my upcoming PC (which may take a while).
Can I change my current installed Win7 key to #Key2 and see whether it is genuine, then change back to #Key1 (on the same machine) without being blacklisted or anything?
The concern is since it take a while for 2nd PC, better to have a piece of mind that my second purchase is genuine as well.
Thanks