hello,

I'm sorry to post about licensing yet again, but I have a problem.

I recently had a laptop with XP installed. I upgraded the hard drive to a larger model, and installed Vista home premium on the new drive.

Is there any way I can use a Vista upgrade license to activate the installation? I am aware of the trick (when you don't have the older edition of windows on the same drive) where you install windows, then install the upgrade version straight after, but I do not wish to format my drive.