So definitely, if your host machine doesn’t have the supported TPM you cannot install Windows 11 in VirtualBox because Oracle VirtualBox is yet to support TPM. Like that, it's easy to malfunction a computer while it's hard to fix it. It's easy to ride down a hill while it's hard to climb the hill back up. You won't get an upgrade through Settings. If you just have a regular Windows 11 install disk or ISO you can bypass the Windows TPM and RAM requirements by making some registry changes during the inst. It’s so unfortunate that even with the plan-B option, that’s using the VirtualBox Manager, you will not still be able to run windows 11 because the resources that are required by the VirtualBox to run Windows 11 are dependent on that of your host Machine. You can install Win11 on a device with UEFI, Secure Boot, and TPM, but which doesn't meet processor req. Click on the Taskbar search box, search for turn windows features on or off, and click on the respective search result. To get started, what you need is to download and install the Oracle VirtualBox here.

But in a situation whereby your PC doesn’t have the supported TPM nor the processor that meets the official requirement you will definitely want to fall back to running Windows 11 on a Virtual Machine Manager solution like Oracle VirtualBox Manager. This requirement also particularly requires that you have a system with TPM 2.0 support. To those who desired to do and have their hope cut-off when Microsoft released the official requirements for systems that can install Windows 11.

Windows 11 is in high demand by many who desired to have a feel of the amazing great features that come with it.

Installing windows 11 without tpm