I am a student in the education community and have the same error when I try to activate the product after the installation. I currently have Windows 7 32-bit on a Toshiba Satellite L505D-S5983 ( if that matters at all). I have a AMD Athlon 2 Dual-Core M300. When the activation page comes up (The one with the 30 day ticker and the option to activate) I click Activate option and this comes up:
(are you sure your Win 7 is 32-bit (rare - installed by you)?
Could you please have a look about below 2 posts to see whether this help to solve your problem?