Hi,
Windows SideShow is a platform that supports gadgets in Windows Vista. Gadgets are mini-applications that send data from a computer that runs Windows Vista to devices that are connected to the computer. The Windows SideShow platform is designed to be extensible so that any device can become a Windows SideShow-compatible device; one example of a Windows SideShow-compatible device is a secondary display attached to a laptop lid or bezel.
Based on my research these drivers were used with Windows Vista gadgets that were displayed in the Side bar but not used in Windows 8 or Windows 8.1. Windows might be offering this update due to some incorrect settings. I would suggest you to hide this update and check if you face any issues. Refer to the section ‘I keep being offered an update from Windows that I don’t want or that already removed’ in this article:
http://windows.microsoft.com/en-IN/windows-8/troubleshoot-problems-installing-updates
Hope this helps. Let us know the results for further assistance.
Currently, I believe this is the correct answer.
I am not sure why, but Sideshow was supported under Windows 8. It seems that all Sideshow dependencies have been removed in Windows 8.1, and Microsoft is mistakenly trying to install drivers for devices that use files that no longer exist in your new 8.1 installation. I'm trying to find out more about this, but for now, disabling your SideShow device or hiding the update is the correct solution