Problem with Dual booting Win7 with UEFI

[hollowman85]

Hi all,

My hardware is an ASUS P9X79 motherboard, with 2 SSD (an OCZ Vertex and an Intel) and 2 Raid volume controlled via an Adaptec Raid controller. I have installed 2 instances of win7 64 bit, first on the OCZ vertex drive followed by another installation on the Intel, using UEFI DVD. My window DVD is an Ultimate version, purchased before Service Pack 1. My problem is:

1. I can run the Win7 on the Vertex properly. When it boot, it also display a boot menu with 2 entries (i.e. Vertex and Intel); however

2. when I select the 'intel' boot entry, the screen turn black for a while, and then return to the boot menu again.

I have displayed the BCD store using BCDEDIT as per the attached.

Disk management also show that the 100MB EFI partition is also in place.

Can anybody give me some hint on how can I solve this problem? Thanks a lot

Tony

[Alan2273]

Not sure if this will help, but it is probably something along these lines.

/>http://www.sevenforums.com/tutorials/26193-convert-mbr-disk-gpt-disk.html

[hollowman85]

Thank you Alan2273... I finally got it works...the problem is due to a double fault:

1. I installed the Intel Rapid Storage Manager which is on my ASUS driver disk..Unfortunately, this will turn my Intel 520 SSD into a SCSI rather than an IDE disk... that make the disk sometimes 'not readable' (found by running the Intel Toolbox for SSD).. and

2. I set the first boot disk to Window Boot Manager..which is incorrect... I should have set it to a DVD drive..

I solve the problem when 1+2 is corrected..

Thanks..

Tony