Where is the product key?

Hi,

If you had a product key for Office 2010 in the past, you can retrieve it by following the instructions described on this page. If you don't have a product key at all, it is no longer possible to purchase a new one for this version.

To purchase a license, you need to go for Microsoft 365 (previously known as Office) which is the current supported version. If you prefer switching to a free software, you can choose an office suite like OpenOffice or LibreOffice.