You can still buy unused product keys for Office 2010 on sites like Educcom or ProductKeys.co for $15–$30. These are leftover retail keys that still work.
To use MS Office 2010, users typically need to activate it using a valid product key. However, obtaining a genuine product key can be expensive or difficult. This is where preactivated versions come in handy. ms office 2010 preactivated google drive link
Q: Can I upgrade to a newer version of Microsoft Office? A: Yes, you can upgrade to a newer version of Microsoft Office at any time, but you may need to purchase a new license. You can still buy unused product keys for