: Look for a 25-character product key on a sticker inside the original box, disc case, or on a product key card.
: Search your inbox for a digital receipt or confirmation email from when the software was originally purchased. Microsoft-Office-2010-Product-keys-plus-Activation-keys-Free
: If purchased digitally from Microsoft, sign in to your Microsoft Account Order History to view your one-time purchase details. : Look for a 25-character product key on
Although Microsoft ended support for Office 2010, you can still activate a valid key: Microsoft-Office-2010-Product-keys-plus-Activation-keys-Free