I was deploying an application through SCCM and it continued to fail every time, although the app was completely installed. I knew it had to be with the verification process. I went through and entered all of the GUIDs for the apps being installed as the verification. I wrote the script below to verify WMI could see the GUIDs and come to find out, they were not registered in the HKCR, but the apps were registered in the HKLM, which makes it show up in the add/remove programs. This resolved my issue of the failure.
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