Ditto, the easiest and most secure way is to buy another hd. Do you clean install and then move the data, pics, music you want to save to the new drive. However all programs, drivers, utilities and your favorites will have to be re-installed. Also your calendar, address book(s), browser preferences, etc. will need to either be re-set or exported to the newly installed programs. I suggest having downloaded to the old drive and in an easy to reach folder all the 64bit drivers and other files you will need. Once all is totally up and running the way you want it, you can use the old drive for your win7 disk image back ups. Take the time before you install Win7 to get everything together (I use a check list of software programs, hardware drivers, data to keep, and the miscellaneous things like the address book). Lastly you will need to be able to reset you email accounts, network and have any passwords or software keys needed for all the above.