Almost like I still have no reason to get a secure boot machine!

This is the best summary I could come up with:

That's apparently changing a bit in Windows 11's 24H2 update, which Microsoft began testing earlier this month.

According to posts from a user named Bob Pony on X, formerly Twitter, the latest Windows 11 builds refuse to boot on older processors that don't support a relatively obscure instruction called "POPCNT."

For Intel's chips, it was added as part of SSE4.2 in the original first-generation Core architecture, codenamed Nehalem.

That effectively bars mid-2000s Intel Core 2 Duo systems and early Athlon 64-era PCs from booting Windows 11 at all, not that they officially supported it in the first place.

This means the change should mainly affect retro-computing enthusiasts who spend their days making YouTube videos in the "we installed Windows 11 on a potato, let's see how it runs" genre rather than users of actual systems.

No CPU manufacturer is including stuff like POPCNT or MBEC in their marketing materials, but modern Windows support is increasingly dictated by these kinds of features.

The original article contains 498 words, the summary contains 161 words. Saved 68%. I'm a bot and I'm open source!

So wait, doesn't the naming for their builds based on the year and whether the first half, or second half, of the year? How would they have a 24H2 if we're only in February of 2024?

And again, install Linux, get rid of Microsoft trash

If you think about it. Rhel already killed of the use of older CPUs by requiring x86-64-v2 for rhel 9 and up. If you got x86-64-v1 you get a kernel panic and can not even boot the system. Dont get me wrong I love linux and use it anywhere I can.