ok all you G75VW owners that are considering upgrading to win 8.1 this is possible.
I Clean installed, used Rufus to create USB install drive. Used a Win 8.1 pro Retail ISO.
I used my $14.95 Win 8 upgrade Key to activate.
First thing installed Classic Shell, booting straight to my desktop and currently installing drivers
Will update as events dictate
G752VY-DH72 Win 10 Pro
512 GB M.2 Samsung 960 Pro
1 TB Samsung 850 pro 2.5 format
980m GTX 4 GB
32GB DDR 4 Standard RAM
Z97 PRO WiFi I7 4790K
Windows 10 Pro
Z97 -A
Windows 10 Pro