How to change from one Vista version to another?

Hello,

I have been testing Vista, and greedy as I was I of course tested Vista Ultimate to see how it worked.

I am now coming up to my 30 day limit so need to "downgrade" to the Vista Home Premium I actually purchased.

Though I havent done a huge amount work, I still have installed all the software I wanted to use (to make sure it worked) and changed settings etc.

Is there a way to change 'easily' from one version to another. I have heard rumours that you can just enter the product key of the new version and that will work. That doesnt seem to do the trick for me.

So then I was thinking whether I can just reinstall Vista but now with Home Premium instead, but I am concerned I will loose all my settings etc.

Has anyone tried something similar and have some experience to share on the subject?

Thanks
Jon

This may help

Use Vista without activation for 120 days

This gives you enough time to work out what to do!
And it's legal

Excellent Thanks for the tip!

Now I just need to figure this one out