When Windows 10 debuted in 2015, Microsoft revolutionized its software release strategy, promising Windows 10 would be the “last version of Windows.” True to its word, Microsoft has faithfully delivered regular feature updates to Windows 10 over the past eight years to enhance functionality, security, and more without releasing an entirely new Windows version.

However, all good things must eventually come to an end. Microsoft just announced Windows 10 will officially reach its end of life on October 14, 2025, and will no longer receive free security updates afterward. Users hoping to continue running Windows 10 can purchase extended security updates (ESU) subscriptions to maintain protection.

For many, 2025 feels like it’s still far away. But Windows 10 has already outlived the lifespan of previous Windows iterations. The operating system has built tremendous goodwill through its unprecedented longevity and familiarity. For users hesitant to migrate computer environments or who built workflows around Windows 10, paying for ESU provides a transitional period to move at their own pace.

Still, the impending cutoff represents a bittersweet milestone. Windows 10 adoption continues hovering around 70% of desktop devices despite Microsoft’s persistent nudging towards Windows 11. Those postponing upgrading likely have reasonable motivations, whether waiting for specific workflow compatibility improvements in Windows 11 or simply being content with Windows 10 meeting all their needs.

Nonetheless, as with previous Windows versions before it, Windows 10 has an expiration date. Once support ends, continuing to use Windows 10 increases exposure to unpatched security vulnerabilities. Microsoft hopes the availability of paid ESU will convince more users to remain in a supported Windows environment while methodically transitioning to Windows 11 rather than risk running Windows 10 unsupported.

Of course, some speculation exists that Microsoft could release yet another new Windows version before October 2025 as well, perhaps a Windows 12 focused heavily on AI capabilities. Whether such rumors materialize or not, the clock is ticking for Windows 10. Users have a few years left to make their peace and prepare for the inevitable changing of the guard.

For those who ultimately ride Windows 10 to the very end though, take a moment when ESU commences to pour one out in remembrance. What an impressive run it’s been.