A coworker recently paid for and downloaded Quickbooks Pro Desktop 2020.

She has an old version of Quickbooks, as do I. Quickbooks Pro 2011, so we both have license keys etc. from our older versions.

Can I install her Quickbooks Pro Desktop 2020 on my computer, and just use my old license key? Will it cost me anything?

My computer will be offline, using quickbooks only for inventory and sales receipts, so we don't need to access to the same company file or anything like that.

Thank you.