Microsoft Office 2019 Product Key List -

Retail keys are single-use. If your friend’s PC shows "Product Activated," the key is locked to their Microsoft account hardware hash.

If you specifically need Office 2019 (perpetual license) rather than a subscription, look for "gray market" legitimate keys from surplus stock (like Kinguin or G2A), but be aware that while these are cheaper, they still carry a risk of being revoked if they were obtained improperly. microsoft office 2019 product key list

: If your PC came with Office, the key might be on a sticker on the device or included in the original packaging. How to Find Your Existing Key Retail keys are single-use