While you can download Office 2021, 2019, and Office 2016 for free from Microsoft, you need to own a license key or have a Microsoft 365 subscription to actually use the programs within. As such, you might want to consider a free Office alternative, of which there are plenty. Upon launching unlicensed Microsoft Office, you will either get the Sign in to set up Office dialog which asks you to sign in to your Microsoft account (that you used to subscribe to Office) or Enter your product key dialog where you need to enter the 25-character product key. You might also get the Microsoft Office activation wizard if you are And all the products our valued customers need will be added over time. How to contact us: phone number: 01025800940 Whatsapp number: 01066170179 Other Whatsapp number: 0572058006 Email: support@syrian-software.com Other email: online-shopping@syrian-software.com software.com. See more. I have 3PC's and 3x 2019 Office Licenses. How can I install a license key on my new PC? When I try to do this, it says I have already used my license key, there is no way to put in my new key. I have tried everything but every time I do, it just says that the key is already being used on another PC. I cannot enter a key for my 3rd PC. However, I deleted the Office 2019 apps from my laptop and re-installed Office 2019 via Microsoft directly. I was forced to download via my Microsoft account (via "purchases") and re-entered the 25-digit product code. Everything fine so far. But then, opening Excel for example, again the same yellowish bar appears, saying I need to get a (paid Microsoft Office 2019 Product Key : MS Office 2019 Key: ZAQ3W-SE4XT-FV6BY-8HUNI-J9DSM. 6TFV7-BGY8H-UN9IJ-98NHU-BGKY7. 🎁 List of all FREE Crypto Airdrops! 🎁 6eRwO.