When Ever you install Windows 10 or reinstall windows 10 You Eight a machine name or machine changes computer looses licence for Samplitude pro . And Sony Spectral Layers Pro 4. There is no way to deactivate the machine name even though it could be the same computer. This problem does not happen for the Magix.com Support where you can deactivate the computer not being used. Sequoia does not have this problem because of the dongle it would help if either, Magix-pro audio side could allow to deactivate an unused computer in the user account or provide a dongle to the products on the magix-pro audio site. :)