How to install Windows 11 on unsupported PCs

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Catherine Le Nevez

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Microsoft's new operating system, Windows 11, is finally available for all users. As we know though, not all PCs are compatible with Windows 11: the most stringent minimum requirements are those related to TPM and processor, as to run the new OS the PC must be equipped with TPM 2.0 and have an eighth generation Intel Core processor, or AMD Ryzen based on Zen 2 architecture. information emerged in recent days we know that there are some ways to get around these requirements, but how to install Windows 11 on unsupported PCs? Let's see it together.

Before moving on to the facts, it is good to remember that There are risks if you install Windows 11 on a PC with unsupported hardware. If it detects an incompatible system, Windows displays a warning before installation that alerts the user of the risks it will run. These include lack of support and updates, possible compatibility issues, increased likelihood of app crashes and black screens of death and warranty decay, resulting in a lack of support from both Microsoft and the manufacturer in the event of damage.

Other than that, one of the methods of bypassing checks is using the registry editor. As you may know, there are risks every time you add new registry keys or modify existing ones. Although as we will see the procedure is quite simple, it could cause compatibility problems or system operation: the Windows installation could for example become corrupt, making it impossible to start and leaving you to reinstall as the only option. In addition, all new Windows 11 security features that are based on TPM 2.0 will be lost. In short, if you want to follow the procedure to install Windows 11 on unsupported PCs, do it at your own risk.

That said, let's see how to install Windows 11 on unsupported PCs. There are in fact two methods: one uses a script we told you about a few days ago, the other involves adding a registry key and it was distributed directly by Microsoft. Let's see them in more detail.

How to install Windows 11 on unsupported PCs via registry editing

Let's start with Microsoft's "official" method, which provides the registry modification. Before proceeding it is important to point out that this method bypasses the requirement of TPM 2.0, but leaves that of TPM 1.2. If you don't even have TPM 1.2, the only option you have is to use the script which we will talk about shortly.

If you want to install Windows 11 on unsupported PCs by editing the registry, but are not entirely sure, you can download this file created by colleagues at BleepingComputer. Just open it and give the ok to edit the registry. Alternatively, to perform the operation "by hand", follow these steps:

1- Click Start, then type in the search bar "Registry Editor" and open it;

2- Using the list of folders on the left, navigate to HKEY_LOCAL_MACHINESYSTEMSetupMoSetup;

3- Click with the right key, selected New-> DWORD Value (32 bit) and name the file AllowUpgradesWithUnsupportedTPMOrCPU;

4- Double click on the new item, assign the value 1 e date ok;

5- Restart the system.

Following these steps, you can update to Windows 11 without problems using the update assistant, or by downloading the ISO and running the setup.exe file contained within. If you are not sure how to do it, we refer you to our guide on how to install Windows 11.

How to install Windows 11 on unsupported PCs via script

As mentioned, the benefit of this script (released as part of the Universal Media Creation Tool) is to be able to create an ISO image ready to be used to install Windows 11 on unsupported PCs. The script does several things, including adding the registry key we talked about, but what we're most interested in is the deletion of the appraiser.dll file: removing the library ensures that, during the installation process, Windows 11 totally ignores the TPM, allowing you to install it even on devices without TPM 1.2.

Let's see how to install Windows 11 on unsupported PCs using this script:

1- Download the script by connecting to the GitHub page and pressing download ZIP at the top right;

2- Extract the archive and run the file MediaCreationTool.bat;

3- Select the item “11” from the list, you will arrive at this screen;

4- At this point, select the option you are interested in: you can create a USB stick or ISO image or, alternatively, select “Auto Setup”. If you opt for this option, the Windows Update Assistant will start and will install Windows 11 independently, if instead you select "Create USB" or "Create ISO", you can install the operating system by following the steps in our guide on how to install Windows 11 .

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