Citrix App Layering is a new solution from Citrix for designing our OS layers., Software or User Data. In January 2017 Citrix acquired Unidesk, in order to have a tool that allows us to reduce the number of images to be kept, both in desktop pool environments and RDHS servers. We will arrange the OS in separate layers, the tools and drivers that are needed, as well as isolating each app in different layers; which we can then associate and deliver as we see fit, either per user or per VDA machine. We will be able to have a single layer of our corporate Windows, that when we need to update we will do it only once, and we will display it to the rest of the images.