Does 7989 build really need to be activated? Why and for what? I can't see 30 days for activate and system expires 03-16-2012. Sorry, maybe I'm just not informed
buuuuuuu: Windows 8 has added the genuine center like in the previous 2 builds if not all of the previous builds lol. It will not say that but you can run this command : slmgr.vbs /dlv That will display the info you need.
No it's a waste to activate this build, you can rearm 3 times... that's enough until Beta.. and maybe another leak before that.