January 14, 2010 12:24 PM updated: January 14, 2010 12:25 PM

HP TouchSmart (IQ 300/600 series) is available for Windows 7 which works fabulously.
Go to this site : http://www.support.hp.com and check that HP has driver and other softwares for your machine under Windows 7. If they have them, download them and you are all set.
Do a fresh install ( don't forget to back-up your data!!!) and then install all downloaded stuff from HP support site.

All the best..