I am upgrading Vista 32 bit to Windows 7 ultimate 64 bit on AMD processor. When I put DVD Windows 7 it does not boot from it.... Dvd ok as can see other CD files. Boot work ok as I can boot from Acronics CD. Tested same W7 DVD and it work ok in my laptop and it start installation. Do I need to make any change in BIOS or why this Windows DVD don't work?
Additions: AMD processor is 64 bit for sure. I can see in BIOS it shows 64 bit. When I tested DVD on my laptop which is 32 bit at least Windows7 installation start. On this computer even installation don't start.