HP tells me I have to buy new win os to make ssd my boot drive. They claim current hdd is keyed to win 8.1 from factory. Something doesn't see right as other are managing to add ssd after the fact and getting the ssd to act as primary drive for booting. Appreciate any help as win 8 as all new to me including bios settings. I have Acronis 2014 and a trial copy of macrium..