
If you bought Office Professional Plus online, see Can I buy a product key? or, if your product key isn't working, see My Office product key isn't working.ĭo I need a product key to reinstall Office? If Office came pre-installed on your new device, and you see a yellow or red banner in an Office app that says PRODUCT NOTICE Most of the features of have been disabled because it hasn't been activated, you must start a new Microsoft 365 Family trial, sign in with a Microsoft account that's associated with Office, or buy Office. For help, see Renew Microsoft 365 for home.


If you see a yellow or red banner in an Office app that says SUBSCRIPTION EXPIRED, you must renew your Microsoft 365 subscription to keep using Office. If you're using a volume license version of Office Professional Plus at work, you'll need to contact your admin for a product key. To locate your product key online, see Get your Workplace Discount Program product key.
#Microsoft office key install#
If you bought Office Professional Plus, Visio Professional, or Project Professional through your employer's Microsoft Workplace Discount Program benefit, you'll need your product key to install Office on a PC. You can also enter the product key at There are a few exceptions where you'll need to do something other than sign in.

Note: If you bought a new, unused Microsoft 365 product key card to renew an Microsoft 365 subscription or to buy your trial, you can enter that product key if Office prompts you for it.
