I have a microsoft office 2019 and I also just purchased microsoft 365 and I want to know if I have to install both on my new computer

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I have a microsoft office 2019 and I also just purchased microsoft 365 and I want to know if I have to install both on my new computer

Rosalind Wheeler 20

I have a microsoft office 2019 and I also just purchased microsoft 365 and I want to know if I have to install both on my new computer.

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You can install both Microsoft Office 2019 and Microsoft 365 on the same computer, but there are some compatibility considerations to keep in mind. Since both products share the same version number (16.0), you may encounter issues if they use the same installation technology. Microsoft 365 uses Click-to-Run technology, while Office 2019 also uses Click-to-Run. Therefore, if both applications have overlapping Office applications, you may not be able to install them together without conflicts.

If you want to use both, it's generally recommended to uninstall one before installing the other to avoid any potential issues. However, if you primarily use Microsoft 365, you might not need to install Office 2019, as Microsoft 365 includes all the features of Office 2019 and more.

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2 additional answers

Answer 1

Stefan Blom 352.6K MVP Volunteer Moderator

If you are subscribed to Microsoft 365 Personal or Microsoft 365 Family, note that these versions let you install the full Office apps on a PC (or Mac), so there is no reason to try and keep Office 2019 installed on the same machine.

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Answer 2

S Bee 0

I want to get rid of 365 completely (I'm retired and don't need all the bells and whistles) and go back to using office 2019. Will I be able to work with the 365 files with the 2019 version if I uninstall 365?

Suzanne S Barnhill 279.4K Reputation points MVP Volunteer Moderator

2026-03-06T02:09:07.1633333+00:00

If you cancel your subscription to Microsoft 365, you should still be able to use Office 2019 for your documents since the file format is the same. But if some of your documents are stored on OneDrive, you will want to download them to your hard drive (to a folder that is not synchronized with OneDrive) before quitting M365 since you will likely have less OneDrive storage (or possibly none).
S Bee 0 Reputation points

2026-03-10T19:12:59.9766667+00:00

Can I have both Office 365 and Office 2019 installed at the same time?
Stefan Blom 352.6K Reputation points MVP Volunteer Moderator

2026-03-10T21:47:05.8366667+00:00

Can I have both Office 365 and Office 2019 installed at the same time?

On the same device, you mean? I am not sure. You can try (be sure to install the oldest version last).

Hanging on to the subscription would require that you continue paying for it regularly, of course. A perpetual license will be a lot cheaper, since it is a one-time payment.

Since Office 2019 is out of support, getting Office Home 2024 might be a better alternative for a one-time payment license. It is for one user and one PC (keep in mind that classic Outlook is not included).