Microsoft this week sent alerts to hundreds of millions of people who still use the Windows 10 operating system, advising them to upgrade to Windows 11 or sign up for extended service updates.
A 60-day notice that was sent to Windows 10 users through the operating system’s update program says that those who have Windows 10 Home, Pro, Pro Education, and Pro for Workstations will not receive any crucial security updates starting on Oct. 14, 2025.