Barence writes "Microsoft is effectively giving away Windows 7 free for a year with the launch of the Release Candidate. The Release Candidate is now available to MSDN and TechNet subscribers, and will go on unlimited, general release on 5 May. The software will not expire until 1 June 2010, giving testers more than a year's free access to Windows 7. 'It's available to as many people who see fit to use it, although we wouldn't recommend it to just your average user,' John Curran, director of the Windows Client Group told PC Pro. 'We'd very strongly encourage anyone on the beta to move to the Release Candidate.'"