Home Premium key to Ultimate

Is it worth the $100+/-? I have a second box with XP/SP3 running so XP mode isn't that big of selling point.

as above i have just upgraded my motherboard, and intend to use the oem licence with that on another build, as per licence however, i have a perfectly good install on my ssd of win 7 hp, and as the new motherboard is almost identical (both gigabyte 775 with p35 chipset) and seems happy with...

I was the first in the family to make the jump into Windows 7, and I installed 64 bit ultimate. The rest of the family is ready to move from XP to Windows 7. I have the 3 pack of home premium(HP) on the way. I need to downgrade my license from ultimate to HP, hopefully without having to reinstall...

Hi, my brother's friend installed Windows 7 Ultimate on our computer (illegaly against what I wanted) and 2 days later it keeps saying not genuine. So I went out and bought Home Premium and I am wondering if there is anyway to go from Ultimate to Home premium without losing our programs. If I try...

I want to upgrade from 32-bit Windows 7 Home Premium to 64-bit Windows 7 Ultimate. Can this be done with an in-place install, or does it require a clean install? Thanks.