So HUGE discovery found in Windows 11 Version 24H2,...

So HUGE discovery found in Windows 11 Version 24H2, since build 25905.
A CPU with the instruction "POPCNT" IS NOW REQUIRED!
There are various system files requiring the POPCNT CPU instruction, from the Windows 11 kernel to the USB XHCI drivers.

Without POPCNT, it doesn't boot!

Windows system files that require the POPCNT CPU instruction:

/Windows/System32/drivers/USBXHCI.SYS
/Windows/System32/drivers/dxgkrnl.sys
/Windows/System32/drivers/ndis.sys
/Windows/System32/drivers/pcmcia.sys
/Windows/System32/Boot/winload.efi
/Windows/System32/Boot/winload.exe
/Windows/System32/esentutl.exe
/Windows/System32/KernelBase.dll
/Windows/System32/mispace.dll
/Windows/System32/spaceutil.exe
/Windows/System32/ntoskrnl.exe
/Windows/System32/ntkr la57.exe
/Windows/System32/advapi32.dll
/Windows/System32/win32kbase.sys
/Windows/System32/DriverStore/FileRepository/usbxhci.inf_amd64_0a84d7ca82f10648/USBXHCI.SYS
/Windows/System32/DriverStore/FileRepository/pcmcia.inf_amd64_47e2021fc6160670/pcmcia.sys
/Windows/System32/fveapi.dll
/Windows/System32/winload.efi
/Windows/System32/tdh.dll
/Windows/System32/ntdll.dll
/Windows/System32/winload.exe
/Windows/System32/conhost.exe

Like 11 February at 20:37 | Open on mastodon.social

5 comments

NermNelly ✨

@bobpony I'd say I hope it boots on an FX-6300 (my main computer's CPU), and it might just, but I will stay on 10 IoT LTSC for the time being anyways.

11 February at 21:02 | Open on wetdry.world

Bob Pony

@nerm_nelly If the CPU at least has SSE4a (AMD) or SSE4.2 (Intel) then it'll boot Windows 11 Version 24H2 without issues.

11 February at 21:21 | Open on mastodon.social

Stuffy :neocat_comfy_happy:

@bobpony well im building my PC anytime soon so good to know!

13 February at 1:45 | Open on wetdry.world

Lim Chunwei

@bobpony Is build 25398 the final build that can boot on a POPCNT-less machine?

20 February at 18:27 | Open on mas.to

:blobcatlaptop: gravitos :blobcatcomfsip:

@bobpony that instruction is part of SSE4.2. you know what else needs SSE4.2? 64-bit images for Waydroid.

yeah, i think this has its reasons somewhere deep up WSA's ass. tho making sure my old laptop (core 2 duo) does not boot currently supported Windows either is a good thing imo

24 February at 7:31 | Open on wetdry.world

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