As your Asus maximus iv extreme-z has a uEFI BIOS.
Try Cleaning the HD Drive, using the CLEAN command (no need to use CLEAN ALL) in Step One in this tutorial:
SSD / HDD : Optimize for Windows Reinstallation
Do not partition or format.
than Reboot PC & Follow this tutorial to install Windows.
How to install Windows 64 bit on a uEFI BIOS:
UEFI (Unified Extensible Firmware Interface) - Install Windows 7 with
For uEFT BIOS setup:
ASUS Sabertooth P67 Motherboard EFI BIOS - YouTube
ok i did the cleaning. I when to BIOS and set it to uEFI. I restart and i got to the this page http://0.tqn.com/d/pcsupport/1/0/b/4...p-repair-1.jpg and then it would get me a black page with blinking cursor.
Where did you get Win7? Did you burn the DVD yourself? Burn another using ImgBurn at 4x speed.
I had the same problem and this is how I solved it. (Now I tried 2 different solutions at the same time and I am not sure which one actually solved the problem. So let me mention both approaches.)
1. Instead of using an automated solution like WiNToBootic to create the bootable USB thumb drive I used the most commonly used manual method.
2. I noticed that the thumb drive was formatted using FAT32. Which I reformatted using NTFS before making it bootable and copying the Windows 7 setup files into it.
Hope this will help if you are struggling with the same issue.
Quote