Command prompt and system bus for Linux is unavailable for Windows 10 S users as well. Windows 10 S does not allow users to use the Command– line interface so it will not handle programming tasks.This means you cannot use apps such as Google Chrome and Mozilla Firefox. Windows 10 cannot use apps other than ones from the Windows store.Here’s why you may not like the Windows 10 S: Windows 10 Pro upgrade is available for free on some Windows 10 S computers, others may have to pay a nominal amount to buy it. You can upgrade your Windows S 10 to standard Windows. In this lite version, Microsoft has compromised on some of the key features of the Windows operating system.