For those who are still using old computers but want to upgrade to the latest Windows 11 24H2, although the most recommended way is to upgrade the computer, in view of the previousNetizens share quickly, and some people may just want to experience it. This article summarizes the actual successful methods shared by foreign media and netizens on the Internet. Readers in need can try it.
The only thing to note is that for processors that do not support SSE4.2 instructions, there is currently no solution. You can only upgrade to Windows 11 23H2 or earlier. After 24H2, it will not work at all.

Image source:Neowin
How to upgrade/install Windows 11 24H2 on an old computer that does not support CPU
There are currently two methods. The first is to directly download Windows 11 24H2 from Microsoft’s official website without using third-party applications. The second is to use Rufus to get the Windows 11 24H2 installation file with the restrictions removed, depending on which one you like.
1. Via Microsoft official website
This method is almost not difficult. It is similar to the old setup.exe /product server, but the instructions used are slightly different.
- First, please go to the Windows 11 official website to download the Windows 11 24H2 ISO file
- After downloading, please mount it and then go to the Sources folder in the ISO file.
- In an empty space in this folder, press the Shift key + right-click, a menu will appear, select “Open Powershell window here”

- In the Powershell window, type cmd and press Enter
- Then enter setupprep.exe /product server

After completion, the Windows installation will begin and the screen will display Windows Server. This is normal. After the installation is completed, it will be the normal version, so don’t worry.

In addition, in addition to the Pwershell mentioned above, after mounting the ISO file, you can also run the “Command Prompt” as an administrator, and then enter sources/setupprep.exe /product server. The two effects are the same.
2. Remove Windows 11 24H2 restrictions through Rufus
If you want to create a bootable disk, you can only use this method.
- First go to Microsoft to download the Windows 11 24H2 ISO file
- Download Rufus free open source tool and start it
- Connect your USB flash drive to your computer
- Open the device menu and select your USB flash drive
- Keep “Disk or ISO image” in boot mode, click the selection next to it
- Find the Windows 11 24H2 ISO file you downloaded
- Then leave all settings unchanged, keep the defaults, and click Execute below.
- A Windows user experience window will pop up. Make sure “Remove requirements for 4GB+ memory, secure boot, and TPM 2.0” is checked. If there is no problem, press OK.

After making it, it’s done, this Windows 11 24H2 bootable disk will not have the limitations of 4GB+ memory, secure boot and TPM 2.0.
Source: KOCPC Chinese