Windows 11 24H2: Developer is working on a bypass for old PCs

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Windows 11 24H2 creates new hurdles for users with hardware that is no longer officially supported. But Rufus developer Pete Batard is working on a solution to enable the update for these devices too – at least for some of those affected.

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Popular tool reaches its limits

Microsoft had made it clear long before the Windows 11 24H2 update was released that other user groups could no longer update due to the minimum hardware requirements. This means that users are now faced with the problem that proven methods for bypassing system requirements no longer work as usual.

Rufusa well-known tool for creating bootable USB drives, has been widely used to install Windows 11 even on devices that are not officially supported. But when attempting an in-place upgrade to Windows 11 24H2, many users report problems. As announced, the previous bypass of the system requirements does not work with the new version.

Pete Batard, the developer of Rufus, has identified the problem and is working on a solution. He has already released a batch script that aims to get around the new restrictions on in-place upgrades.

Details of the bypass

The script provided by Batard makes several registry changes to affect the system requirements check. It deletes certain compatibility markers and adds new entries that trick the system into believing that the necessary requirements are met.

Batard emphasizes that these changes are only necessary for in-place upgrades and current methods should continue to work for new installations. For in-place upgrades, you must run the following from an advanced command prompt before starting setup.exe:

reg.exe delete “HKLM\SOFTWARE\Microsoft\Windows

NT\CurrentVersion\AppCompatFlags\CompatMarkers” /f 2>NUL
reg.exe delete “HKLM\SOFTWARE\Microsoft\Windows
NT\CurrentVersion\AppCompatFlags\Shared” /f 2>NUL
reg.exe delete “HKLM\SOFTWARE\Microsoft\Windows
NT\CurrentVersion\AppCompatFlags\TargetVersionUpgradeExperienceIndicators” /f 2>NUL
reg.exe add “HKLM\SOFTWARE\Microsoft\Windows
NT\CurrentVersion\AppCompatFlags\HwReqChk” /f /v HwReqChkVars /t REG_MULTI_SZ /s , /d
“SQ_SecureBootCapable=TRUE,SQ_SecureBootEnabled=TRUE,SQ_TpmVersion=2,SQ_RamMB=8192,”
reg.exe add “HKLM\SYSTEM\Setup\MoSetup” /f /v
AllowUpgradesWithUnsupportedTPMOrCPU /t REG_DWORD /d 1

I will incorporate this batch script into the created media in a future version of Rufus

Pete Batard, developer of Rufus

Limits of compatibility

Despite these efforts, there are hardware limitations that cannot be circumvented. Windows 11 24H2 requires processors with PopCnt and SSE4.2 support. For systems that do not meet these requirements, there is currently no way to install the update. Batard had to disappoint some users who wanted to force the update on very old systems.

What do you think about this development? Have you had any experience using tools like Rufus to install Windows updates on older hardware? Share your opinions and experiences with us in the comments!

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Summary