1.Use your office professional plus 2010 product key to install a new office professional plus 2010 software.
2.open your office software,microsoft will require you to activate your office software.
3.when you activate your office,please choose the 2nd option(I want to activate the software by telephone)
see the picture step1
4.choose your country,and call the telephone below.then provide your installation ID (9 group number) to microsoft.microsoft will give you the confirmation ID.Then you input your confirmation ID.Click Next.Your office software will be activated successfully.
see the picture step2