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I am using windows 7 on my asus G73sw

In the past I was able to install ubuntu 12.04lts and windows 7 via a dual boot system through grub.

I recently had to reformat my windows OS and when I tried to install ubuntu 12.04 lts from a CD via UEFI I always get a message saying secure boot not enabled and then it lets me choose to install ubuntu. Afterwards the computer hangs and I cannot proceed with installation.

Has anyone come across this issue before?

I have no option in my bios to enable secure boot.

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