I think you will have problems with drivers trying to use a OS from another notebook. I know you will trying to use the win 8 on a desktop computer. Chipset drivers mainly but most other hard ware drivers also.
Your best bet is to clean install win 7 to a 256 gb SSD, then transfer over your data files, You can then use your Win 8 drive as a Data Drive. I would download
Asus Backtracker and create a restore USB Chip first thing. Download the Win7 drivers from
Asus Download, You will find all the info you need to accomplish the
Clean Install in this thread You will need to use the Intel USB 3.0 drivers, Win 8 has a native MS USB 3.0. Good Luck and let us know how it goes.
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