We regret the complications. These should certainly not occur. We sell this item several times a day and never actually have this problem.
Unfortunately, we have no direct insight into the order in question.
We therefore hope that our customer service, together with the manufacturer, can offer a solution as quickly as possible.
Yes, the software is supplied on a bootable USB stick that you can use to install Windows 11 Pro. The USB stick contains all the necessary installation files and is suitable for installation on a PC that fulfils the system requirements such as UEFI and TPM 2.0.
A USB stick with at least 8 GB of storage space is required to create or use a bootable USB stick for Windows 11. You can use Microsoft's Media Creation Tool to load the installation media onto the USB stick and make it bootable. When starting the PC, you can then select the USB stick as the boot medium in the boot menu to start the installation.
Well, if you are unlucky, your key is available x times and it is an illegal licence. they also like to sell an OEM version, i.e. this is not transferable to another PC. got weak and bought a Windows 11 Pro key for 20 euros. it went well at first, 2 Windows updates later Microsoft blocked my Windows on the grounds that it was an illegal version. then I could no longer activate it. no answer came from Key Support.
The version is a retail version with a perpetual licence for one user, supplied as a software box on USB. It contains a licence key and is not bound to an individual device, unlike an OEM version, which is bound to the hardware and is not transferable. A licence sticker is usually included with software boxes.
In my opinion, Mobo and CPU should go. Just make sure you don't change them too much. Leave the graphics card and HDs as they are and possibly change them later. Piece by piece.
You can install this version on a PC. An upgrade to Win 11 is also free of charge afterwards.
If you use a new mainboard in 1 to 2 years, you can install and activate this Windows again. It could (but must not) run on 2 PCs. There are only problems with activation if you want to activate it for a short time in succession. But always use the Pro version.
You can only have one Win11 active on your PC. If you now enter the key for Win11 Pro, your Win11 Home will be gone and you will have Win11 Pro on it. Which is generally the better choice;-)