Windows 10 is the latest and amongst the most popular operating systems released by Microsoft. Even though the OS is rather robust, sometimes the Shell infrastructure host stops working. This can be pretty annoying.Even though it may sound complicated, it isn’t very difficult to solve this issue. Read on to learn more about this problem and its fixes. What is Shell Infrastructure Host? The Shell Infrastructure Host is also known as SIHost, and it is a core part of the Windows (OS) operating system. The Shell Infrastructure Host is required for coping with many graphical elements of your operating system