After uninstalling the office 2010 beta you install full office 2010 (VL) and the activators will not work. They say it cannot be activated. 800...07d. You might also get error 25004, Error 25004. The product key you entered cannot be used on this machine

I tried uninstalling the software/micorsoft/office  registry key in HKLM and HKLU , alsolso protected storage ones. this did not seem to make any diffference.

The way to activated is to uninstall the beta and install a VL version, then change the key to:

VYBBJ-TRJPB-QFQRF-QFT4D-H3GVB

Make sure you are offline then run the activator, once completed you can then go online. You should also make sure that antivirus has an exclusion set up to make sure the office activator is not removed because it can get flagged as a virus. The activator runs as a service, this is normal because it constanly emulates a licenses server to allow use of the VL 2010.