Publisher Perpetual 2010 License

Dear @Peter Angus,

I hope you’re having a good day. 

Possibly, but I would proceed with caution.

Since you're currently using Microsoft 365 and only need it for another month, the main consideration is whether Publisher 2010 can coexist with your existing Office installation without causing conflicts.

A few things to keep in mind:

• Publisher 2010 is part of the Office 2010 generation and is long past its support lifecycle.
• Microsoft 365 uses a newer installation model and Office components from different generations do not always coexist smoothly.
• Even if Publisher 2010 installs successfully, there is a possibility that the installer could detect the existing Microsoft 365 installation and either block the installation or prompt you to remove Office components.
• Windows 11 may run Publisher 2010, but Microsoft no longer provides support or compatibility guarantees for that product.

Before attempting the installation, I would recommend checking:

1. Whether your Publisher 2010 license is a standalone Publisher license or part of Office Professional 2010.
2. Whether your current Microsoft 365 installation is 32-bit or 64-bit.
3. Whether the Publisher 2010 installation media is the same bitness as Microsoft 365.

If your goal is simply to ensure that you can continue using Publisher after your Microsoft 365 subscription expires, the lower-risk approach would be to keep Microsoft 365 as-is until next month and prepare your Publisher 2010 installation media and product key in advance.

Warm regards,  

If the answer is helpful, please select "Yes" and kindly upvote it. If you have extra questions about this answer, please click "Comment".  

Note: Please follow the steps in the forum documentation to enable email notifications if you want to receive the related email notification for this thread.