Windows 7 W7 rc rleease ?

how long will w7 rc work. the other thing will you be able to buy w7 before the rc expires

The Windows 7 RC will expire on March 1st, 2010.. At that time there will be bi-hourly shutdowns... ;) There hasn't been an official release date announced yet.. so we'll just have to wait and see if we will be able to purchase Windows 7 before the RC or RTM builds expire.. :) Many speculate that Windows 7 Retail will be released sometime in the fall of 09.. ;)