10/12/2026
30 days. Then Windows 11 23H2 stops getting security updates ๐ ๏ธ
And this week, Windows 11 24H2 Home and Pro hit the same wall.
Microsoftโs November 2026 update will be the last one for 23H2 Enterprise, Education, and IoT Enterprise. After that, those PCs keep running, but they stop getting patches for new threats.
Hereโs the uncomfortable part:
An out-of-support computer doesnโt look broken. It boots up. It opens email. Nobody notices anything until itโs the one machine an attacker finds.
The 30-second check (do it today):
โ Press Windows key + R
โ Type winver and hit Enter
โ Read the version number
If it says 23H2 or 24H2, put it on your upgrade list. The fix is Windows 11 26H2, which Microsoft released in September.
If you manage more than a handful of PCs, the real problem is that nobody knows which machines are on which version. Thatโs the first thing we look for in an IT review.
Also on Microsoftโs calendar this week: Windows Server 2022 moves from mainstream to extended support.
Question for my fellow IT folks: how many of your clientsโ PCs are still on 23H2 or older? ๐