Windows 7: Windows 7 Home Prem OA

I have a question, just recently I have gotten an HP Compaq 610, it came with windows 7 home prem preinstalled, every time I open up microsoft office it asks for the product key, I typed the on that was located at the bottom of my computer, it said it was the wrong, how do I get the correct product key for Windows 7 Home Prem OA?

If you received a DVD with office the number is on the sleeve. If not call the MFg of your computer.

It seems that they want the number for office, not the OS.

Are you sure it isn't the 90-day Office Trial put on most p.c.'s as a MS promotion?

You would normally have to pay more to have Office installed if it isn't the trial version.