Boot Camp – Easy install and upgrade for Windows 11 (no TPM checks)

Steps to install Windows 11:

0. BACKUP your data from Windows before proceeding (added this as a later edit point)

1. Install Windows 10 with Boot Camp Assistant. If you already have it, you can skip to next step.
2. Download the drivers from Boot Camp Assistant > Action > Download Windows Support Software. And save the drivers to a USB stick.
3. Login to Windows 10 in Boot Camp, download the latest Windows 11 ISO from Microsoft.
4. Mount the Windows 11 ISO
5. Run CMD as Administrator and execute commands from below. This will allow you to bypass the hardware checks like TPM and will allow you install Windows as usual. After you finish the installation you would want to use the USB stick and install the drivers manually.

D:                             (or the letter of your mounted Windows 11 iso)
setup.exe /product server      (this launches the setup and skips
                                compatibility checks)

Erros

Then installation crashes, no warning or error.
     Restart the install form step 5.
--
Windows Server installation has failed.

     You might not have enough free space 
     in C drive to perform the install, 
     release 20 - 40 GB of space, 
     delete games for example.

Steps to upgrade from Windows 11 22H2 to 23H2 and other newer versions.

• You will follow the same approach, download new ISO, mount, run setup from CMD with product server flag.

In the image below we can see that I perform the upgrade from Windows 11 22H2 to 23H2.