I purchased a license of Windows 7 Ultimate from my university. I plant to upgrade a Windows 7 Home PC to Ultimate and then to Windows 10 Pro. It much cheaper than purchasing the Pro upgrade from MS.

I'd prefer not to have an ISO image 55GB in size, I'd like it to be of just what i have installed which right now is about 900 MB. I tried to 'dd' it but it created a 55GB image (size of the hard ...