Article Summary: Windows 10 reached the end of Microsoft support on October 14, 2025, which means it no longer gets security updates. The computers still work, but any new flaw found in Windows 10 will never be fixed, which makes them easier to attack and can cause problems with compliance and cyber insurance.

Microsoft has tightened several default settings in Microsoft 365 over the past few years. Newer tenants get more protection out of the box than tenants set up before 2022 or so. The problem is that legacy configurations stay in place.