Windows 7 Lifehacker's Guide to Upgrading to Windows 7 RC

[DarkMaster]

Whether you want to set up a dual-boot system, you're ready to migrate all the way to Windows 7 RC from XP, or something in between, here's what you need to know. You'll need to have already downloaded Windows 7 RC before you proceed with any of those methods, but now that you've had some time, let's take a look at a few ways you can install and use Windows 7 RC. If you're still not sure if Windows 7 seems worth it, check out the top 10 things to look forward to in Windows 7, then take a peek at what's new in Windows 7 RC.

Lifehacker - Lifehacker's Guide to Upgrading to Windows 7 RC - Windows 7 upgrade

thanks to this i didn't have to do a clean install