Microsoft 365 Apps to End Support on Windows 10
Microsoft has officially announced that its 365 apps will stop working on Windows 10 devices after October 14, 2025. After this date, devices running Windows 10 will also no longer receive security updates.

To maintain optimal security and functionality, Micrsoft is strongly encouraging users to upgrade to Windows 11.
While your computer will continue to operate post-October 2025, the absence of regular security updates will expose it to potential risks. Additionally, Microsoft 365 apps, including Word, Excel, and Outlook, will no longer receive updates or support on Windows 10, potentially leading to performance issues and reduced reliability.
To ensure a seamless transition, follow these steps to upgrade your device to Windows 11:
- Check to see if you device meets the minimum criteria for upgrading your device by navigating to this page.
- After ensuring your device meets the minimum requirements, navigate to your Desktop taskbar. In the search bar, type and select “Settings.”
- From the menu, click “Privacy and Security,” then select “Windows Update.”
- click download and install the windows update.
- You will need to reboot your computer. The update can take a while to prepare your device. Do not turn off your computer during the update. Doing so can cause harm to your computer.

It’s important to note that Windows 11 has specific hardware requirements, including the necessity for TPM 2.0 and newer processors. Devices lacking these components may be ineligible for the upgrade.
In such cases, users might consider investing in new hardware to take advantage of Windows 11’s features and security enhancements.
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Or get the free OpenOffice.
Won’t help you with the lack of security updates tho.
True enough, but I think of the number of people / companies I know who still run 10 (or earlier) on their computers for whatever reason (familiarity, hardware and peripheral limitations, software compatibility, etc), who use 3rd Party security apps and hardware, and limit their online presence from questionable sites and email, they may simply need an Office Suite that works and isn't tied to the company trying to get the user to upgrade to next OS.
If it comes to that, I have an Intel MacBook running Monterey that I use for travel / work purposes only and have Office 2021 stand-alone version installed (which I purchased on sale for less than a one year Personal 365) on it. Recently, the updates have said that I need a newer OS before some updates will work. That won't happen, but the apps still do what I want them to do. If that was ever to change or I felt 'unsafe' about security, I'd likely move to OpenOffice – which I'd used before.
Typo: To maintain optimal security and functionality, Micrsoft is strongly encouraging users to upgrade to Windows 11.
Parallels for Mac offers a software emulation of a Trusted Platform Module chip (TPM) when installing Windows 10 and 11 on it and both Intel and M processors are supported. It is also possible to install W11 on older Windows machines lacking the hardware requirements because Microsoft recently finally allowed Windows 11 on older PCs without TPM 2.0. although cautioning against it. There were workarounds all along but MS kept blocking them. So people owning W10 machines may not be forced to buy the new computes with W11 compatible hardware in order to install it and thereby keep the support for 365 apps.