Vista 32 bit to Vista 64

[yellowjack 28]

My understanding about buying Microsoft OEM software is that you can install it on one system. If you try to overhaul said system, you'll have to convince Microsoft activation people on the phone to activate it on your new configuration. I think the main thing is the motherboard. Apparently if you change your mobo, they consider it a new system, and they won't want to activate it unless you convince them that the original OEM mobo died and it's being replaced, and even then you may not succeed. Upgrading one or two components, such as HD, video, etc. may not be problematic, from what I understand.But, I've only read about such things, and can't speak from my own experience. I understand that it's a lot easier to transfer retail software to a new rig (or overhauled rig) than OEM.

Been there, done that. The phone call was no biggy. I just told them I was upgrading my machine. No problems with permission but you have to enter a series of numbers into your machine, given over the phone. I thought it easier to write the numbers down first and then enter them. IIRC the last time I did this the whole phone thing was done with a VRU.