Depending on how you originally purchased Office 2010, your key will be located in one of the following places:
The Ultimate Guide to "Enter Your Product Key Microsoft Office 2010" enter your product key microsoft office 2010
Once you've located your product key, you'll need to know exactly where to enter it. The location depends on whether you're installing Office for the first time or activating it after installation. Depending on how you originally purchased Office 2010,