Hi,

On my machine I have Windows Vista (business EOpen licensed) and as I
only downloaded it last week from MS it had service pack 1 integrated.

If I need now to install the DVD components of this (to allow playback
of DVDs etc), I understand I need to upgrade to Ultimate (to keep
domain functionality).

I happen to have a copy of Vista Ultimate (that came with the system
originally under OEM license), but this is not SP1 (as the computer is
nearly a year old).

If I put that disk into the machine, and run the upgrade, will the
whole system be wiped, or will just the ultimate parts of the system
be added? What about the SP level on the machine (will it go back to
pre-SP1)?

Thanks.
Andrew.

Hi Andrew,

You can't upgrade an installation at SP1 using the pre-SP1 disk, it won't
work. The disk used for upgrading has to be at the same service pack level
or higher.

--
Best of Luck,

Rick Rogers, aka "Nutcase" - Microsoft MVP
http://mvp.support.microsoft.com/
Windows help - www.rickrogers.org
My thoughts http://rick-mvp.blogspot.com

"Andrew Hodgson" wrote in message
ews.com...
Hi,

On my machine I have Windows Vista (business EOpen licensed) and as I
only downloaded it last week from MS it had service pack 1 integrated.

If I need now to install the DVD components of this (to allow playback
of DVDs etc), I understand I need to upgrade to Ultimate (to keep
domain functionality).

I happen to have a copy of Vista Ultimate (that came with the system
originally under OEM license), but this is not SP1 (as the computer is
nearly a year old).

If I put that disk into the machine, and run the upgrade, will the
whole system be wiped, or will just the ultimate parts of the system
be added? What about the SP level on the machine (will it go back to
pre-SP1)?

Thanks.
Andrew.