I've got a bank of Lenovo B50-10 laptops with Intel Pentium 2.16GHz with 4GB memory. I'm trying to down grade from Windows 10 to Windows 7 Pro with a few problems.
When I try do a legacy boot from CD, I get a blue screen Stop A5 error and stays there.
There is no option to boot UEFI from DVD. So I tried a USB UEFI boot, that loads Windows, but hangs on the Windows Logo.
I've run out of options, any ideas?