Re: GA-73PVM-S2H - BIOS freezes after update.
My initial guess would had been that the cmos battery was dead before updating the Bios... but now that you are where you are, if you have another power supply or can borrow one I'd try that as... Flaking power supply can cause what you are seeing.
as for the MS software, as long as you have the installation CD/DVD's and the activation codes, the software is yours and you will be able to activate on any new system you get if need be.
OS = Win8.1
CPU = i7-980X @ 4.17Ghz 144x29 cooled by custom Loop
Mem = 12GB 2000Mhz corsair Dominator GT at 2010Mhz @ 9-10-9-27-2T
MB = Gigabyte GA-X58A-UD5 v1.0 with F6 Bios - Dead Board
MB = EVGA X58 Classified3 e770
GPU = 2x Sapphire r9 290x in xfire
HD = 2x Toshiba 120GB Raid 0 (580MB Read/140MB Write)
Storage = 2TB WD Black
PSU = EVGA SuperNOVA 1300w
Case = Cooler Master HAF-X 945
HTPC / Home Server
OS = Win7 64Bit running XBMC HTPC Front end with Windows Server 2011 Virtual Machine with 8GB ram assigned for homer server with exchange
CPU = AMD 1090T
Mem = 16GB 1600Mhz Kingston RED Limited Edition running at 1600Mhz
MB = Gigabyte 790FXTA-UD5
GPU- EVGA GT210
HD = too many to count, but about 5TB of storage all together including backup
PSU = Corsair TX750
Case = Too embarrassed to mention.