Go to your Microsoft account dashboard and if you're not already signed in, select Sign in. Third-party seller: You bought Microsoft 365 from a third-party and you're having problems with the product key. Some organizations have different methods to install Microsoft 365 on multiple devices. Volume license versions: If you work in an organization that manages your installations, you might need to talk to your IT department. Microsoft Workplace Discount Program (formerly known as Home Use Program): If you bought Microsoft 365 for personal use through your company, see Install Office through Workplace Discount Program. It's a shame MS can't provide more clarification - the message could actual tell you what you have installed or how to correct the issue.Note: The steps to install the 2019, 2016, or 2013 versions of Office Professional Plus, Office Standard, or a stand-alone app such as Word or Project might be different if you got Microsoft 365 through one of the following:

For example - trying to open or save directly to O365 from an application wouldn't work and you would see error messages. When you have both on your system some things stop working - particularly with the integration with online products or web based products. Technically - there are ways to get these both on your system, but it's not a good idea which is why Microsoft blocks you. Here - you have to download the entire package and then install it before you can use office.

It basically streams the application down to you - and you can actually start using it before it's installed completely.Īs you uncovered another versions is what is called MSI based - this is the traditional install method for windows applications.

Microsoft has two different versions of office.įrom the O365 Portal you get what is called 'click to run' - which installs via a streaming service. This message is pretty clear if you work in IT - but not very clear if you don't deal with installing packages all day.

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