Basic questions... I assume the 1999 rupee offer would work and upgrade Vista to Windows 8 Pro before January 31. Right? The computer on which this upgrade has to work is connected to the internet. So, I would be using the Microsoft's software to pay for it. The problem is that the internet on this machine is pretty slow and has a crappy FUP. So, I was thinking, downloading the ISO file on my computer. Put it on a pen drive and do an install from it instead. Questions... I need the ISO for 32bit edition of Windows 8. Would this ISO work on Windows Vista? Or there are different ISOs for different Windows editions? How exactly do I start the upgrade process? Booting from the pen drive would probably not upgrade the existing edition? The basic question is that I want to avoid the 2GB download on that laptop. Is it avoidable?