This script will work in conjunction with the Citrix Receiver Clean-up Utility to clean Receiver per-user installations for all users on a machine. The 'ReceiverCleanupUtility.exe' application can be downloaded from https://support.citrix.com/article/CTX137494 and needs to reside in the same directory as the script. The script should be run either as LocalSystem or an elevated local administrator.
Go to my blog post for a full write-up on the script: https://blog.markdepalma.com/?p=133