Microsoft will end support for Microsoft 365 for Windows 10 this October, so you'll need to buy a new Windows 11 PC.

For now, Microsoft remains mum on when it’ll phase out the free Windows 11 upgrade. The company didn’t immediately respond to a request for comment. But Microsoft ended the free Windows 10 upgrade for Windows 7 and 8 users in 2016, one year after Windows 10 launched. After that, upgrades started at $120.

Just a few days ago, security researchers warned hundreds of millions of Windows users they’re at risk from a “ dangerous security fiasco .” Microsoft has now confirmed the same, proclaiming 2025 “the year of the Windows 11 PC refresh.” And for 400 million users in particular, that means hitting the stores before it’s too late.

Microsoft is making a full court press to get the hundreds of millions of users still running Windows 10 to pick up a new Copilot+ PC with Windows 11.

As the push toward Windows 11 continues, Microsoft confirms that Windows 10 users will lose support for apps including Word, Excel, and Outlook.

Microsoft 365 Apps will no longer be supported after October 14, 2025, on Windows 10 devices,” the company confirmed. “To use Microsoft 365 Applications on your device, you will need to upgrade to Windows 11.

We're nine months out from Windows 10 reaching its October 14 end-of-support date, and Microsoft is kickstarting 2025 by piling the pressure on those yet to make the jump to Windows 11. Despite being the current most popular version of Microsoft's operating system,