Millisecond Forums

I get this error when uninstalling the app from the Windows 10 system level add/remove programs page:

I installed it for a survey on Prolific and don't want it anymore.
I don't understand how I would open the add/remove page in admin mode. The specified file is either hidden or does not exist in the specified directory when I navigate there in windows explorer.
I cannot trust this app given this experience and will not use surveys that use it anymore. I also cannot recommend that researchers or survey participants use it.