By the way. I tried to put the entire Navigraph Charts folder exactly where Window is looking for the uninstallation exe file.
Strange thing is that the Uninstall Navigraph Charts. exe file is not there either…among the contents of the folder.
I had a copy of Navigraph Charts under Admin.
So I suspect myself of having deleted the folder where it was located originally, hence Windows cannot find it.
So if I somehow could put back what is needed of files where Windows tries to find it, I believe everything would be OK (?)
*** Have to answer your last reply here as only 3 replies are permitted.
Your suspicions were correct; uninstalling via Programs and Features made it ! I can no happily and easily plan my IFR flights again in my much beloved MU2. Thanks ! ***