M$ will block PCs from running Windows 11 unless the CPU supports SSE4.2

Marc_LFD · Apr 26, 2024

Well, that's not good news.

https://www.tomshardware.com/softwa...pu-must-support-sse42-or-the-os-will-not-boot

Surely that can't be legal to make the OS unable to boot?

Yes, it's "only" for those who are running on unsupported hardware (fuck them, right?), but that's a really dick move.

I loved using Windows OSes (except ME, Vista, 8, 11) so it's a shame to see what a disgrace they've become.

JeepX87 · Apr 26, 2024

I'm running Windows 11 on PC that I bought in 1998, lol.

Statesman · Apr 26, 2024

Would be willing to bet someone will figure out a way to circumvent this eventually...but to be honest, very few people will be actually using non-SSE4.2 CPUs in 2024. And those that are will not be very likely to use their machines as workstations/gaming, so they'd be better served by a Linux distro anyway.

Tom Bombadildo · Apr 27, 2024

Not good news for who? As mentioned, SSE4.2 has been supported on CPUs for nearly 20 years.

Pretty sure the first generation Intel Core series CPUs had support for SSE4.2, and anyone using CoreXYZ or AMDs shitty K10 CPUs in 2024 is almost assuredly not running Windows 11, or probably even 10, or even 8 at this point (I hope). And on the off chance the whole 2 people on the planet who would even want to for a daily driver can just...not do the big feature update and it'll still work fine.

SylverReZ · Jun 11, 2024

Marc_LFD said:
Well, that's not good news.

https://www.tomshardware.com/softwa...pu-must-support-sse42-or-the-os-will-not-boot

Surely that can't be legal to make the OS unable to boot?

Yes, it's "only" for those who are running on unsupported hardware (fuck them, right?), but that's a really dick move.

I loved using Windows OSes (except ME, Vista, 8, 11) so it's a shame to see what a disgrace they've become.

I'm sure that these limitations can be bypassed using the Command Prompt during setup.

Latiodile · Jun 11, 2024

friendly reminder that microsoft didn't allow windows 8 to boot on CPUs that don't support PAE/NX/SSE2, and i think before that windows ...98? needed a pentium mmx at minimum because it required the mmx extensions

microsoft have been doing this since forever lol

console · Jun 11, 2024

I agree with you that Windows 11 version 24H2 are very bad and a lot of worse. Heard about "Recall" added in Windows 11 version 24H2 is very nasty gross that background service capture screenshots of your email address, address, banking account, passwords, social media accounts and many more. More easily target them by hackers love to harvest all people info then break in them to hack all them without their people's permission.

Microsoft company should face huge fines and multiple charges in court for harvest all people info, etc are very wrong. I hope Microsoft business should shut down then closed forever. Anytime one day for Microsoft company will go out of business then gone forever. Linux for us and people should won over Microsoft due to many problems.

Someone know very skill can do modify Windows 11 operating system ISO image and release out on internet anytime. Also add extra security to block all know Microsoft spywares and no TPM required, no Microsoft account required and move on. We should using modded Windows 11 operating system image (ISO) with all bloated removed, removed all know Microsoft spywares background, No TPM required, No Microsoft account needed and many more. Just like old school rules forever. We can use Windows 98, XP, 7, 10 themes as we like to change them anytime to bring old memories back.

RedColoredStars · Jun 11, 2024

console said:
I agree with you that Windows 11 version 24H2 are very bad and a lot of worse. Heard about "Recall" added in Windows 11 version 24H2 is very nasty gross that background service capture screenshots of your email address, address, banking account, passwords, social media accounts and many more. More easily target them by hackers love to harvest all people info then break in them to hack all them without their people's permission.

Microsoft company should face huge fines and multiple charges in court for harvest all people info, etc are very wrong. I hope Microsoft business should shut down then closed forever. Anytime one day for Microsoft company will go out of business then gone forever. Linux for us and people should won over Microsoft due to many problems.

Someone know very skill can do modify Windows 11 operating system ISO image and release out on internet anytime. Also add extra security to block all know Microsoft spywares and no TPM required, no Microsoft account required and move on. We should using modded Windows 11 operating system image (ISO) with all bloated removed, removed all know Microsoft spywares background, No TPM required, No Microsoft account needed and many more. Just like old school rules forever. We can use Windows 98, XP, 7, 10 themes as we like to change them anytime to bring old memories back.

Dude. Seriously. You can disable copilot and recall. Meanwhile, you give your information freely and willingly to tons of other companies.... but WIINDOEZ BAD!!!!

tech3475 · Jun 11, 2024

SylverReZ said:
I'm sure that these limitations can be bypassed using the Command Prompt during setup.

Depends on whether they're actually using the instructions.

IIRC there was one hypothesis that this is due to MS changing compilers and looking at the Wikipedia page, there are instructions which can apparently speed up e.g. XML parsing, CRC32, etc.
https://en.wikipedia.org/wiki/SSE4#SSE4.2

That said, back in the day when OSX was first ported to X86, IIRC there was an SSE driver to dynamically convert the instructions for older CPUs. So maybe someone can make a modified device driver, although it will likely take a performance toll on already old CPUs.

Latiodile said:
friendly reminder that microsoft didn't allow windows 8 to boot on CPUs that don't support PAE/NX/SSE2, and i think before that windows ...98? needed a pentium mmx at minimum because it required the mmx extensions

microsoft have been doing this since forever lol

The main difference here is that it's happening mid-release, although on CPUs which officially aren't supported anyway.

This IMO was always the risk of running W11 on unsupported hardware, it will work but for only as long as MS don't implement features which requires newer CPUs.

Even Linux isn't necessarily safe from distros dropping older CPUs:

4d1xlaan · Jun 11, 2024

Marc_LFD said:
Surely that can't be legal to make the OS unable to boot?

I would be interested in a law that legally requires software to run on all possible hardware

bassviolet · Jun 17, 2024

how do you know if your thing can use sse4.2?
My PC Specs

4d1xlaan · Jun 19, 2024

bassviolet said:
how do you know if your thing can use sse4.2?
My PC Specs

If your cpu isn't 15+ years old

https://en.wikipedia.org/wiki/SSE4#Supporting_CPUs

ut2k4master · Jun 19, 2024

bassviolet said:
how do you know if your thing can use sse4.2?
My PC Specs

intel has supported it for ~15 years, amd for ~13. your cpu absolutely supports it

SylverReZ · Jun 19, 2024

Great job, Microshaft. Now we don't ever have to run your garbage operating system, having glowies watch our every move.

4d1xlaan · Jun 19, 2024

SylverReZ said:
Great job, Microshaft. Now I don't ever have to run your garbage operating system, having glowies watch my every move.

Your hardware is this old?

SylverReZ · Jun 19, 2024

4d1xlaan said:
Your hardware is this old?

No, not at all. It's new actually, my Intel CPU supports up to SSE4.2.

4d1xlaan · Jun 19, 2024

SylverReZ said:
No, not at all. It's new actually, my Intel CPU supports up to SSE4.2.

Odd, your comment implied you wouldn't be able to run it anymore because of this change

Xzi · Jun 19, 2024

Seems overly restrictive if they're actually trying to attract more customers to their freemium OS which collects and sells all your data. Then again, they have little reason to care about consumer-class software any more when 98% their profit comes from businesses and governments. I'm gonna end up having to air gap my Win10 PC once security vulnerabilities are discovered after end of service, and building a new Linux machine for all my online needs.

Kioku · Jun 19, 2024

I fail to see how this is a problem. Generally speaking, this shouldn't impact the vast majority of users. Not worth the time and energy... the generic push for AI, on the other hand...

PityOnU · Jun 19, 2024

jfc this is such non-news it's unbelievable, and just goes to demonstrate how click-baity and overly-dramatic internet content has become these days...

The official hardware requirements for WIndows 11 have not changed. This is not reflective of any policy change by Microsoft, and Microsoft is not "blocking" any new systems. The only thing that has happened is that they have once again made an update to their OS-as-a-service (as has previously occurred, and continues to occur, on a regular, rolling basis). As part of this new update, a new type of instruction is now being used in the bootloader. The instruction is part of a very, very old extension to the amd64 instruction set, and as such, CPU's that don't support that specific instruction will no longer be able to run the bootloader. CPU's that do not support that specific instruction are well outside of Windows 11's supported hardware list, and have been from the release of the OS. This is an absolutely tiny change which is likely the result of some MS dev somewhere slightly modifying the compile options for a single source module, or perhaps updating the minor version of the compiler they use.

Good LORD...

M$ will block PCs from running Windows 11 unless the CPU supports SSE4.2

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