With the disposable disk option, Horizon View creates what is effectively a temporary disk that gets deleted every time the user powers off their virtual desktop machine.

If you think about how the Windows desktop operating system operates and the files it creates, there are several files that are used on a temporary basis. Files such as temporary internet files or the Windows pagefile are two such examples. As these are only temporary files, why would you want to keep them? With Horizon View, these types of files are redirected to the disposable disk and then deleted when the VM is powered off.

Horizon View provides the option to have a disposable disk for each virtual desktop. This disposable disk is used to contain temporary files that will get deleted when the virtual desktop is powered off. These are files that you don't want to store on the main operating system disk, as they would consume unnecessary disk space. For example, files on the disposable disk are things such as the pagefile, Windows system temporary files, and VMware log files.

It's worth pointing out that we are talking about temporary system files and not user files. An end user's temporary files are still stored on the user data disk so that they can be preserved. Many applications use the Windows temp folder to store installation CAB files, which can be referenced post-installation. Having said that, you might want to delete the temporary user data to reduce the overall desktop image size, in which case you could ensure that the user's temporary files are directed to the disposable disk.