Windows 10 on iMac 2006 (6,1) and getting "Select CD-ROM boot type" error

[techguy9]

Hey everyone, I'm trying to install Windows 10 on my old iMac, but I'm getting the dreaded "Select CD-Rom boot type" message when booting from the DVD. Happens when I try to boot both 32 and 64 bit versions. Any way to fix it?

 

[techguy9]

Strangely enough, this also happens on my iMac 4,1 with 32 bit Processor and EFI32, I try to boot from the 32bit CD and the same message appears. I thought it wouldn't happen on this one since this is 32 bit everything. What's wrong?