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Microsoft patches TPM 2.0 bypass to prevent Windows 11 installs on PCs with unsupported CPU


BigStar

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Uh oh. Who woulda thought?

 

Good times for slightly older CPUs are coming to an end. . . . Though this was found in the Canary Build, this will likely trickle down to future releases and be implemented for all systems once updated. . . . While there are other installation methods, it's simply a matter of time before Microsoft patches these bypasses. In this situation, users can switch to older Windows 10 with supported builds, shift to Linux, or make a hardware upgrade.

     --https://www.tomshardware.com/software/operating-systems/microsoft-patches-tpm-20-bypass-to-prevent-windows-11-installs-on-pcs-with-unsupported-cpus

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Seems another compelling reason to ditch WinBloze on new hardware. 

Guess run a Linux ver, and then a older ver of Win in a VM. 

 

 

 

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  • 2 weeks later...
On 8/21/2024 at 12:54 AM, BigStar said:

Uh oh. Who woulda thought?

 

Good times for slightly older CPUs are coming to an end. . . . Though this was found in the Canary Build, this will likely trickle down to future releases and be implemented for all systems once updated. . . . While there are other installation methods, it's simply a matter of time before Microsoft patches these bypasses. In this situation, users can switch to older Windows 10 with supported builds, shift to Linux, or make a hardware upgrade.

     --https://www.tomshardware.com/software/operating-systems/microsoft-patches-tpm-20-bypass-to-prevent-windows-11-installs-on-pcs-with-unsupported-cpus

Are they still allowing machines with TPM 1.2 to upgrade to Windows 11? 

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  • 1 month later...
2 hours ago, KhunHeineken said:

Many members have posted their Windows 11 upgrade on unsupported hardware installed fine, and is working fine, and they are receiving security updates.

 

It appears Microsoft have more patching to do.  :smile: 

 

Which members installed or upgraded to Win 11 24H2 bypassing TPM and with an unsupported CPU?

 

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Just glancing around on the 'net, the bypass now seems hit-or-miss w/ 24H2. Some insist that as long as your CPU supports SSE4.2, the old bypass will work; if not, then that loophole's gone.

 

SSE4.2.jpg

 

If not, it may install and run until you reboot.

 

Another user says:

 

The Rufus bypass method no longer works, at least for me on my 2018 hardware. The options to bypass are still there in Rufus, however, 24H2 forces the use of BitLocker, which absolutely requires TPM. Therefore, I cannot update 23H2 using USB Flash Drive or an .ISO file using the many methods we've been using the past few years to get Win11 installed on slightly older hardware.

 

Some claim no problems, others insist that now various other hoops need to be jumped. Rufus, still actively supported, may update for more workaround. There's a discussion here (among many):

 

https://www.elevenforum.com/t/how-do-i-get-around-this-issue-to-install-24h2.29134/

 

Seems M'soft did get stricter, but hasn't really dropped the hammer yet.

 

YMMV. If I run across further news, I'll pass it along.

 

Edited by BigStar
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32 minutes ago, BigStar said:

Just glancing around on the 'net, the bypass now seems hit-or-miss w/ 24H2. Some insist that as long as your CPU supports SSE4.2, the old bypass will work; if not, then that loophole's gone.

 

SSE4.2.jpg

 

If not, it may install and run until you reboot.

 

Another user says:

 

The Rufus bypass method no longer works, at least for me on my 2018 hardware. The options to bypass are still there in Rufus, however, 24H2 forces the use of BitLocker, which absolutely requires TPM. Therefore, I cannot update 23H2 using USB Flash Drive or an .ISO file using the many methods we've been using the past few years to get Win11 installed on slightly older hardware.

 

Some claim no problems, others insist that now various other hoops need to be jumped. Rufus, still actively supported, may update for more workaround. There's a discussion here (among many):

 

https://www.elevenforum.com/t/how-do-i-get-around-this-issue-to-install-24h2.29134/

 

Seems M'soft did get stricter, but hasn't really dropped the hammer yet.

 

YMMV. If I run across further news, I'll pass it along.

 

 

No. Your source and news is outdated. I already wrote about this earlier. They were using an older version of Rufus that needed to be updated. In the meantime the developer released a script that you could apply manually and then released 4.6 Beta. 4.6 Stable was released today.

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15 hours ago, NowNow said:

 

No. Your source and news is outdated. I already wrote about this earlier. They were using an older version of Rufus that needed to be updated. In the meantime the developer released a script that you could apply manually and then released 4.6 Beta. 4.6 Stable was released today.

 

Nobody's looking for a Rufus script. The fact that one is needed verifies that M'soft has tightened things up. I ran across a "failed 24H2" thread in which the Rufus developer jumped in and showed concern. So I figured he'd see if he couldn't come up w/ another workaround, as implied in my post. So he did. I see on today's freeware lists that 4.6 is out, so I looked at the changelog:

 

 

 

 

Version 4.6 (2024.10.21)

    Add a new setup.exe wrapper to bypass Windows 11 24H2 in-place upgrade restrictions
    Add TimeZone to regional options replication
    Set local account passwords to not expire by default
    Fix an error when trying to write compressed VHD images
    Fix an error when invoking Rufus from the PowerShell commandline
    Improve revoked UEFI bootloaders check to support Linux SBAT, Windows SVN and cert DBX
    Improve support for ReactOS boot media

 

Which sounds good. We'll see how it goes down w/ the vast numbers of Win users w/ older hardware.

 

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