It looks like my HP2000 came with an OEM version of office (OEMOffice14).
When I try to install it (by double-clicking setup.exe), I'm asked for a Product Key (" ... typically found in your product packaging") - but I either did not get that "product packaging" or I threw it out. I still have the box the pc came in, but I don't find any specific reference to a Product Key there (or a Pin, which the install process also suggests I can use the get the Product Key).
Am I out of luck? Or would I have to pay Microsoft before I can install Office? Or ... ?