DSP or Retail of Home Premium?

[Bubo]

If you use XP as the eligible product to install a Vista upgrade, then you can't use that XP anyway, since in license terms that XP license + Vista upgrade are now a single Vista license (over simplified for this case).

This is exactly what I thought I discovered when I researched Vista. I wanted the option to dual boot and the info I read categoricly stated that if you install the upgrade version of Vista, you cannot dual boot as it invalidates your XP license as it installs. Then Kojack comes and says it is possible, though apparently dodgy in license terms. I was just after some confirmation of what was legal.

It's like if I had Photoshop CS2 and bought the CS3 upgrade - I can't use both products. I can either use CS3 or choose to uninstall the upgrade and go back to CS2.

Yes this would appear to be sensible, its just that with the transition from Win98 to XP, I bought the upgrade version of XP and was freely allowed to dual boot with Win98 if I wanted, so it was reasonable to assume the same would happen with XP->Vista upgrade. Like I said, I did the research, found this was not allowed anymore, then subsequently found someone had done it and became confused again, hence me asking for a definitive comment in here. I think I'll go back to my base position that if I want to dual boot Vista I'll buy the full retail version and be done with it.

 

[Kojak]

You are not licensed to run XP on another computer, by doing to you are breaking the terms of the upgrade EULA.

Burnsy

I only run XP on one computer. Nothing wrong with that. When I upgrade my system it's removed from the older one.

 

[Fire Wizard]

Hello Bubu, the whole idea of the "Upgrade" license is to upgrade your older version of Windows (Windows XP) to a newer version of Windows (Windows Vista). Now depending on the version of Windows XP that you have and the version of Windows Vista that you are looking to purchase and also weather it will be the 32-bit or the 64-bit edition, you may need to do a clean format. More information about this can be found here.

Regarding dual booting with a Windows Vista Upgrade license. You cannot dual boot using an upgrade license, certainly not without violating the terms of the EULA. If Microsoft did allow you to dual boot using an "Upgrade" license then surely it would go against the whole idea of what an "Upgrade" is? If you would like to dual boot Windows XP and Windows Vista along side each other, buy either the OEM license or the Full Retail license.

Then Kojack comes and says it is possible, though apparently dodgy in license terms.

What you can physically do and what you can do legally are two completely different things.

Can't give you a link but I've installed Vista on a PC with XP and it's not invalidated my copy of XP for use on another computer.

I only run XP on one computer. Nothing wrong with that. When I upgrade my system it's removed from the older one.

Hello Kojak, if you are talking about the "Upgrade" license, that you have upgraded Windows XP to Windows Vista and are now using the same license of Windows XP that you upgraded from on another system, then there is something wrong with that I am afraid.

If you have a machine with Windows XP already installed on and you go out and purchase the "Upgrade" license of Windows Vista. Then upgrade Windows XP to Windows Vista using the "Upgrade" license, this then means that you can no longer use that Windows XP license on another machine.

13. UPGRADES. To use upgrade software, you must first be licensed for the software that is eligible for the upgrade. Upon upgrade, this agreement takes the place of the agreement for the software you upgraded from. After you upgrade, you may no longer use the software you upgraded from.

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