Office 2019 licenses are not subscriptions, they are perpetual (one time purchase) licenses, which means, you can use them forever without expiration. Office 365 subscriptions on the other hand are valid or either a month or year depending the type of subscription you choose. Best regards, Andre Da Costa. Independent Advisor for Directly. Find Office licence details. Open a Command Prompt with Admin access (aka DOS box) in Windows. Press the Windows key then type/search for ‘cmd’ – choose ‘Command Prompt (Admin). Change to the correct Office folder, depending on which ‘bitness’ software you have. 64-bit (x64) Office. cd c:\Program Files\Microsoft Office\Office16\ I’d installed a KMS license to use Office 2019 for free, but after some time it started having problems, so I bought Office 365. The problem was that I couldn’t make it work because the f*****g fake license was still there, somewhere. Best Selling. Microsoft Office 365 Personal (License & Software Assurance) (1 PC/Mac) for Mac, Windows QQ2-00092. (149) $50.95 New. Microsoft Office Home & Business 1-PC for Windows/Mac OS (‎T5D-03518) (1) $99.99 New. Microsoft Office Home & Business 2021 1 Device for Windows 10 PC/Mac (T5D03518) Step 1: The first step is to check the type of your Office 2016/2019 or Office 365 installation. To do so, open Word, Excel or any other Office application, click File menu, click Account, and then click About Word to check if your Office 2016, Office 2019 or Office 365 install is 32-bit or 64-bit. Step 2: Open Command Prompt by typing CMD in If your purchase of Office or Microsoft 365 came with a product key, you enter your product key on one of the websites listed below for your product. After you enter your key, you can download and install Office, or you can renew your Microsoft 365 subscription. Tip: Get tech expertise with Business Assist. nrXB.