microsoft office professional plus 2019 product activation failed
To configure the KMS host computer to activate Office, you must be a member of the Administrators group on the KMS host computer. If your KMS host computer has internet access, do the following steps: Sign in to the Volume Licensing Service Center (VLSC) and download the KMS key for each product and version of Office that you want KMS to activate.
Let us verify which Office 2010 suite is installed on the computer. Click Start, go to Control Panel, open Programs and double click Programs and Features to check which Office 2010 suite is installed on the computer. If multiple versions present, then you may right click on Office Professional Plus 2010 and then click Uninstall.
However, the message on top of the Office applications are still: (Product Activation Failed). I added my computer to the account in File/Office Account (using Manage Account). I don't have a Product Key (or the one I had is/was invalid, I don't know). The message I see is: "This product is unlicensed.The problem with Pro Plus versions of Office is that when initially installed they do not create an Office Account from where you can reinstall Office unlike retail versions of Office 2013/2016/2019 and Office 365, which do have an Office Account. Although, of course the email address and password for a Microsoft Account must be used to install
I have a Product ID (the 25 character thing) for Office 2019 Pro. It's been running on a laptop for OVER two YEARS. Worked fine. I recently had to re-install Windows 10 Pro on the laptop. I then took the file I had for the Product key and downloaded Office 2019. It worked EXACTLY the way it did when I originally downloaded it. EXCEPT. I can'tThen you enter your Microsoft account first. Then enter the product key in the column provided. Of course, if you have entered the number correctly, your MS Office 2013 will automatically be activated and can be used. However, if the pop-up does not appear, you can go to the account menu in the MS Word or Excel application.