Thanks for providing the tutorial, I made my way here through google
I bought new hardware some months ago and finally wanted to get everything running the way it was intended to run from the beginning (triple boot using Win8, Windows 7 and CentOS).
I own MSDNAA/Dreamspark copies of Windows 7 Professional 64bit and Windows 8 "N" and have been trying to get my Windows 7 UEFI install up and running since yesterday. It's really starting to drive me crazy, because I simply never get to complete the installation.
Some further detail about my Hardware:
asrock H77 Pro4/MVP
Seagate 3TB disk
I can access the "UEFI" boot mode for the DVD-drive through my boot menu, so it is indeed starting in EFI mode.
During my first run I kept all UEFI settings default (secure boot disabled, "boot mode" was set to "setup"). The disk was pre-initialized with a GPT (using gparted) and during the partitioning process of the Windows 7 installation procedure I was able to create 3 partitions, however, a warning displayed as also mentioned in the tutorial ("Windows cannot be installed to this disk. This computer's hardware may not support booting from this disk. Ensure that the disk's controller is enabled in the computer's BIOS.").
I disregarded the message and hit next, the installation then proceeds until right after the updates are installed, rebooting thereafter.
Whatsoever, the installation process does not continue from there on. In the UEFI boot menu it shows "Windows Boot Manager" as top priority and if firing that up I get an "unexpected error" (Status 0xc0000225) - it says that due to recent hardware or softwarechanges windows might not be bootable.
I reiterated several times, using diskpart instead of gparted, setting secure boot to enabled (thereby changing the "boot mode" to user), resetting it to disabled and so on and so forth - without any success.
I would be really glad if someone could help me out - has anyone gotten Windows 7 to run on that particular board? I figure the Z77 series should do as well (someone over here seems to have gotten it running).
Thanks a lot in advance for any advice.