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General => The Campus => Topic started by: Biterider on February 16, 2024, 07:14:03 PM

Title: Windows 11 24H2 goes from “unsupported” to “unbootable”
Post by: Biterider on February 16, 2024, 07:14:03 PM
[...]
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."
[...]

https://arstechnica.com/gadgets/2024/02/windows-11-24h2-goes-from-unsupported-to-unbootable-on-some-older-pcs/ (https://arstechnica.com/gadgets/2024/02/windows-11-24h2-goes-from-unsupported-to-unbootable-on-some-older-pcs/)

Biterider
Title: Re: Windows 11 24H2 goes from “unsupported” to “unbootable”
Post by: jj2007 on February 16, 2024, 07:54:47 PM
Quote from: jj2007 on June 22, 2016, 09:06:47 AMPopCount() runs on all CPUs and is almost as fast as the native popcnt instruction that you may find on recent CPUs

Memories... that was 8 years ago, but popcnt is actually a bit older:
QuoteIntel implements POPCNT beginning with the Nehalem microarchitecture
almost 16 years ago. I thought Windows 11 required a recent cpu to be installed?
Title: Re: Windows 11 24H2 goes from “unsupported” to “unbootable”
Post by: NoCforMe on February 16, 2024, 08:43:52 PM
Yet another reason, if any were needed, to avoid Windows 11 like the plague.

A comment from that article (by someone with the handle "Frodo Douchebaggins"):
QuoteI will continue my journey of avoiding Windows 11 for as long as I possibly can, which is hopefully forever.
Title: Re: Windows 11 24H2 goes from “unsupported” to “unbootable”
Post by: TimoVJL on February 16, 2024, 08:54:51 PM
Something to read:
Unsupported CPU: CPU Does Not Have POPCNT [5 Fixes] (https://www.partitionwizard.com/partitionmagic/cpu-does-not-have-popcnt.html)
Title: Re: Windows 11 24H2 goes from “unsupported” to “unbootable”
Post by: Vortex on February 17, 2024, 04:01:01 AM
Hi NoCforMe,

QuoteI will continue my journey of avoiding Windows 11 for as long as I possibly can, which is hopefully forever.

A home user can do it but no way for an IT department. Sadly, companies will have to move to Windows 11.
Title: Re: Windows 11 24H2 goes from “unsupported” to “unbootable”
Post by: TimoVJL on February 17, 2024, 04:46:10 AM
Quote from: Vortex on February 17, 2024, 04:01:01 AMHi NoCforMe,

QuoteI will continue my journey of avoiding Windows 11 for as long as I possibly can, which is hopefully forever.

A home user can do it but no way for an IT department. Sadly, companies will have to move to Windows 11.
Perhaps not a problem for companies, as they change desktop PC's more often than i change trousers  :biggrin:
Title: Re: Windows 11 24H2 goes from “unsupported” to “unbootable”
Post by: NoCforMe on February 17, 2024, 08:05:39 AM
Quote from: TimoVJL on February 17, 2024, 04:46:10 AMPerhaps not a problem for companies, as they change desktop PC's more often than i change trousers  :biggrin:
Well, sure: companies are locked into the never-ending cycle which necessitates having the "latest and greatest" of both hardware and software on their desktops and in their server rooms. They won't fight this, and in fact just treat it as one of their ongoing expenses.
Title: Re: Windows 11 24H2 goes from “unsupported” to “unbootable”
Post by: Vortex on February 17, 2024, 08:26:13 PM
Hello,

Not every company is purchasing immediately the latest hardware after the release of a new operating system. Most of the Win10 laptops are supporting Win11. Today's conditions are different especially after the C19 pandemic.