Microsoft : How to install Windows 11 on incompatible PCs

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[Alex5723]

https://support.microsoft.com/en-us/windows/ways-to-install-windows-11-e0edbbfb-cfc5-4011-868b-2ce77ac7c70e

Warning:

Microsoft recommends against installing Windows 11 on a device that does not meet the Windows 11 minimum system requirements. If you choose to install Windows 11 on a device that does not meet these requirements, and you acknowledge and understand the risks, you can create the following registry key values and bypass the check for TPM 2.0 (at least TPM 1.2 is required) and the CPU family and model.

Registry Key: HKEY_LOCAL_MACHINE\SYSTEM\Setup\MoSetup

Name: AllowUpgradesWithUnsupportedTPMOrCPU

Type: REG_DWORD

Value: 1

Note: Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall the operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk….

• This topic was modified 3 years, 8 months ago by Alex5723.

2 users thanked author for this post.

windbg, b

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I’ve never been one for “Microsoft recommends …” Microsoft is in an obligated position of support for non-OEM Windows installations/upgrades, and it is in Microsoft’s best interests to keep all users in the same tightly controlled box, so that support issues can be handled by a low-level tech reading a script of questions and answers. The same holds for OEM’s, who must support Windows as well as their own products. The truth of the matter is that a Windows installation can be modified in ways to yield a more efficient, proficient, reliable Windows with increased performance and basically bullet-proof, and becoming one’s own support person.

The “Microsoft recommends …” in the OP notwithstanding, Windows 10 can be upgraded to RTM Windows 11 simply by using the Windows 10 installation media with the \sources\install.wim (or \sources\install.esd) replaced with the same file from the Windows 11 installation media. During the process the skin says “Installing Windows 10”, but it’s installing Windows 11. No registry changes need to be made; it simply upgrades Windows 10 to Windows 11. My upgrade took 1:06 to get to the OOBE, and 3 minutes to go through that.

I have no qualms about getting elbow deep in the registry, I’ve been doing that for years. Importing some registry files that I wrote is the easiest way to get rid of the useless (to me) ‘Special Folders’ that were introduced years ago. I use the same registry files after every major upgrade to rip them back out. However, no registry changes are needed to upgrade Windows 10 to RTM Windows 11. Using the simple file replacement in the installation media completely bypasses the system check for Secure Boot and TPM. I have both Secure Boot and my TPM 1.2 header disabled in UEFI, making them invisible to the OS.

Always create a fresh drive image before making system changes/Windows updates; you may need to start over!

We all have our own reasons for doing the things that we do with our systems; we don't need anyone's approval, and we don't all have to do the same things.

We were all once "Average Users".

Computer Specs

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bbearren wrote:

Windows 10 can be upgraded to RTM Windows 11 simply by using the Windows 10 installation media with the \sources\install.wim (or \sources\install.esd) replaced with the same file from the Windows 11 installation media

Can you write a topic that explain the exact steps to do that.

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WSaltamirano wrote:

Can you write a topic that explain the exact steps to do that.

Yes, I can do that.  I’ll post it here in this forum.

Always create a fresh drive image before making system changes/Windows updates; you may need to start over!

We all have our own reasons for doing the things that we do with our systems; we don't need anyone's approval, and we don't all have to do the same things.

We were all once "Average Users".

Computer Specs

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If the “Install” in the title means to install a clean copy of Windows 11 on a computer that has been running activated Windows 10, what is the issue? Last night I used the MS Media Creation tool to create a USB installation drive. I used an old Dell E6440 i7 laptop as my test-bed to see if I even wanted Win 11. I booted on the USB drive and performed a normal offline installation of Pro without any warnings. I chose a clean install and deleted the existing partitions. After the install for a local account completed, I connected to my wifi and downloaded some Intel driver files from Microsoft.

Windows 11 is activated and seems to be working as expected with NO tinkering or disclaimer acceptance required. The Dell Secure Boot and TPM 1.2 BIOS options were enabled prior to installation.

True to MS form, the UI is a sad case of moving stuff around and declaring is better. The only positive thing I can say about the new “Menu” is that it is even worse than Win 8/10’s and Classic Shell still works.  It is also easy to relocate the Apple wannabe taskbar icons back to the left side.

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