To cut things super duper short since there isn't much explaining possible:
I installed the CBT from the Microsoft store and tried to boot it, expecting it to tell me it's not ready yet but instead it tolld me the following error message: "This product is not supported by your envoirment. For more information please check system requirements at the Player's page." I thought it's a simple fact of my pc being to bad but no, it actually does reach into middle requirements according to the Microsoft store.
Did anyone run into the same? Does anyone know a fix?