I think it will work, if not you can always flash the old BIOS back. It probably just says Windows 8 becasue its UEFI BIOS. UEFI works with Windows 7 too as im using it on my Asus M5A99X
It's a prebuilt Acer and the Motherboard is Acer, in the drivers list it shows the update this PC was built using Windows 8 but I installed 7-64 bit cause i don't like 8. just curious if it would be compatible
I think it will work, if not you can always flash the old BIOS back. It probably just says Windows 8 becasue its UEFI BIOS. UEFI works with Windows 7 too as im using it on my Asus M5A99X