Microsoft no longer sells or provides free downloads for Office 2010. Authentic installers were originally tied to paid product keys.
Since Microsoft removed the official links, you need a verified, untouched ISO. The only semi-safe repository is the Internet Archive (archive.org) . Search for "Office 2010 SP2 64-bit ISO." Check the SHA-1 hash against known Microsoft values if possible. microsoft office 2010 64 bit free
Microsoft no longer provides official download links or trials for Office 2010 from its main website. Functionality: Microsoft no longer sells or provides free downloads