I have installed windows 7 ultimate 64bit Bulid 6801. Now I want to activate but ALL product key (32bit and 64bit) downloaded from microsoft are "invalid". How can I do ?I have not received any activate email. Thanks,Gary

I have installed windows 7 ultimate 64bit Bulid 6801. Now I want to activate but ALL product key (32bit and 64bit) downloaded from microsoft are "invalid". How can I do ?I have not received any activate email. Thanks,Gary HiBuild 6801 was the pre-beta version that was available from the PDCwhich wasavailable last year?None of the current product keys will work with that build.The download for the current build (7000) has ended. The next version that will be available is the RC (Release Candidate).Hope this helps.Thank You for testing Windows 7 Beta Ronnie Vernon MVP