Home Use Programs (HUP), Electronic Software Download (ESD), Point of Sale Activation (POSA), and Product Key Card (PKC) are different variations of retail licenses sold online and in stores. To transfer a retail license to another computer, you must first deactivate the product on the current device. However, you can only use it on one PC at a time. If you purchase Office online or in-store, you can use its license on any computer.

Full Product Pack or Full Packaged Product (FPP) License: Also called a “Retail License,” this license ships with Office apps that you manually install on your computer.

The product key attached to this license cannot be transferred or used to activate Microsoft Office apps on another computer.

Original Equipment Manufacturer (OEM) License: OEM Office licenses are pre-installed on new Windows devices from the factory by the manufacturer.

To use this product key, contact your administrator. Let’s have a look at some popular Microsoft Office licenses: I used that website, downloaded office and got the following message when I put in my product key, 'This product key is for a volume-licensed version of Microsoft office professional plus 2013, which isn't currently installed.

Each license has varying apps, services, and features. There are different types of Microsoft Office licenses.

Office 2013 volume license key