F9 is recovery if your recovery partition is still there and good. Otherwise you would use the DVD set you made when it was new. Or recover the latest Image you created in your back up set. Here's a link to your
user manual I have no idea about any Z drive
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