Your Acer should have a recovery Parition, and it will probably have the
means to create the recovery dvd's
If you havent done this you need to do so now!!
Win7rc is not an upgrade its a clean install

"Glenallan" <robt.black******.com> wrote in message
news:A56B8683-3B05-4A15-992C-4CF1015FC15E@microsoft.com...[color=blue]
>I have an Acer PC with Vista Home Premium preinstalled.
>
> I want to upgrade to Windows 7 rc.
> If I do not like Windows7 (or have issues with it) and want to revert to
> Vista, can I simply uninstall the Upgrade?
> --
> I do not have a disc copy of Vista.
>
> Thanks and Cheers...Robert
> -----------------------------[/color]