How to install Windows 11 without TPM 2.0

Here's how you can install Windows 11 without TPM 2.0. If you want to install it on your computer using either official or unofficial ISOs, you may be out of luck if your computer does not support Trusted Platform Module 2.0 or TPM 2.0. An attempt to install Windows 11 on a PC lacking TPM 2.0 will end up with the following error: "This PC can't run Windows 11. The PC must support TPM 2.0." Fortunately, it is easy to bypass the stumbling block. This article will show you how to install Windows 11 on a computer that does not support TPM 2.0.

Install Windows 11 Without TPM 2.0

You need Windows 11 installation ISO, a regular Windows 10 installation ISO, several commands in Command Prompt/PowerShell/Windows Terminal, and an ISO image editing tool like infamous UltraISO.

To install Windows 11 without TPM 2.0, do the following.

1)  Convert Windows 11 install.wim to install.esd

1. Download Windows 11 installation ISO (it is up to you where to get it,) and double-click it in File Explorer to open its contents.
2. Open its Sources folder, find the install.wim file and copy it to any preferred folder.
3. Now, launch Command Prompt, PowerShell, or Windows Terminal as Administrator.
4. Enter the following command: dism /Get-WimInfo /WimFile:X:\Path\install.wim. Replace X:\Path with the path to the folder with the previously extracted install.wim file. For example, C:\Users\Taras\Desktop\install.wim.
5. Next, find the index number for the SKU you want to install. For example, Windows Pro.
6. Now, enter the following command: dism /export-image /SourceImageFile:"X:\Path\install.wim" /SourceIndex:INDEX /DestinationImageFile:"X:\Path\install.esd" /Compress:recovery /CheckIntegrity. Replace X:\Path with the path to your install.wim and INDEX with the index number for the desired SKU.
7. Wait for Windows to complete converting wim to esd.
8. Unmount (eject) Windows 11 ISO.

2) Replace install.esd in the official Windows 10 ISO

1. Go to the official Windows 10 website and download Media Creation Tool. Use is to download Windows 10 ISO for your computer. Skip this step if you already have one.
2. Open the downloaded Windows 10 ISO image in UltraISO.
3. Delete the existing sources\install.esd file you see in UltraISO.
4. Drag and drop the X:\Path\install.esd you have created onto the UltraISO window to place it instead of the deleted file.
5. Click on Save or press Ctrl + S in UltraISO to alter the ISO image.

Now you have a fresh Windows 11 ISO file ready for installation on computers without TPM 2.0. Install it as a regular Windows 10.

Modify the ISO image without using UltraISO

If you don't have the UltraISO app, you can use Microsoft's official tool oscdimg, which is part of Windows ADK. Here's how you can use it to put the install.esd file with Windows 11 over the existing Windows 10 file in the ISO image.

1. Double-click your Windows 10 ISO to mount and open it.
2. Copy all files and folders to any preferable folder on your computer, say c:\ISOFOLDER.
3. Copy your Windows 11 install.esd file you have created and paste it into the c:\ISOFOLDER\sources directory. Confirm the original file replacement.
4. Open a command prompt and type oscdimg -m -o -u2 -udfver102 - bootdata:2#p0,e,bc:\ISOFOLDER\boot\etfsboot.com#pEF,e,bc:\ISOFOLDER\efi\Microsoft\boot\efisys.bin c:\ISOFOLDER c:\ISOFOLDER\Windows11.iso.

Voila, you Windows11.iso is in the c:\ISOFOLDER ready for clean install!

Bypass the TPM 2.0 requirement without rebuilding install.esd

One of our readers sent me advice that instead of completely rebuilding the ISO image, it is enough to replace appraiserres.dll with the same file from Windows 10. For example, in this way.

1. Open the Windows 11 image in UltraISO.
2. Delete appraiserres.dll.
3. Double click on the Windows 10 ISO file in Explorer to open its contents.
4. Drag appraiserres.dll to the remote location in UltraISO.
5. Save the Windows 11 ISO.

Done!

Replace appraiserres.dll in Windows 11 image with oscdimg

1. Double click on the Windows 11 ISO file in File Explorer.
2. Copy all content to c: \ ISOFOLDER folder.
3. Double click on the Windows 10 ISO file in File Explorer.
4. Take the appraiserres.dll file from Windows 10 and copy it with replacement to the c:\ISOFOLDER folder.
5. Build the iso file with the command oscdimg -m -o -u2 -udfver102 - bootdata:2#p0,e,bc:\ISOFOLDER\boot\etfsboot.com#pEF,e,bc:\ISOFOLDER\efi\Microsoft\boot\efisys.bin c:\ISOFOLDER c:\ISOFOLDER\Windows11.iso

That's it.

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