Here's my situation, I am thinking about doing a complete upgrade to Windows Vista Ultimate FULL VERSION. If I install a retail version on my current computer. Can I uninstall it and install it on any new computer I buy WITHOUT having to call Microsoft to do it? If I bought a new license, could I do it without buying the software again or would I have to buy a whole new Windows 7 Ultimate retail package to install it on my new computer. Yes, I know that Windows 7 will come pre-installed on any new computer, but I like to have the DVD.