A:Answer You can install other versions of Windows on this laptop. The BIOS is specially set up with MS Windows license key. Also, expect that the Windows 10 Home will be installed in "S" (Secure) mode which limits the laptop from downloading or using programs which are not in the Microsoft Store. For example, if you want to use Google Chrome, you will not be able to, unless it is in the Microsoft Store. You can disable "S" (Secure) mode by going to the Microsoft Store and asking for "S" mode to be removed. Once it is removed, it cannot be reset. If you install Windows 10 Pro, you will need your license key. Check with Dell directly, as they may be partnering with Microsoft on preloaded Pro system (look at XPS), but I know they are more expensive.