You must boot into your existing Windows Vista Home Premium installation,
then once you are at the Desktop, insert the upgrade DVD disc in your DVD drive
and you will be offered the upgrade option.
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"dave1421" <email@example.com> wrote in message news:firstname.lastname@example.org...
I have a Aspire AM5620-E5301A Acer computer.
On Acer it has Windows Vista Premium Home.
I bought Windows Ultimate software to put on my Acer computer.
It starts to load up OK, put in the key number in than next step is.
To pick custom install or upgrade install, but upgrade choice is grey
It is disable from using the upgrade choice, I want to choose to pick.
I did not purchase Windows Ultimate through Acer anytime upgrade
It was a store bought software it was cheaper than Acer price they
What is the problem with installing Ultimate with Acer computer?