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I have just purchased an ASUS UX31A-DH51 Zenbook with Windows 8 preinstalled and I want to remove it and install Windows 7. However I can't load Windows 7, it hangs at the beginning of the install process. I figure I need to disable UEFI but I can't find an option to do that in the BIOS. Anyone have any ideas how I would go about installing Windows 7 or how to disable UEFI?

Thanks.

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migrated from stackoverflow.com Nov 12 '12 at 5:57

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up vote 1 down vote accepted

Here is an article I found at Seven Forums which might be helpful.

How to Install Windows 7 Using the "Unified Extensible Firmware Interface" (UEFI)

Interesting Warning about disabling UEFI:

  1. Disabling UEFI will make the system unbootable as there is no MBR on the disks.
  2. You CANNOT make a sector-by-sector copy of GPT disks. The Disk and Partition GUIDs will no longer be unique. This must never happen. You can make a sector-by-sector copy of the contents of ESP or basic data partitions.

Also found this on MSDN - Installing Windows on UEFI Systems

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