While you're trying to solve your 'uninstall' administrator privileges problem, you can delete your program by 'tricking' the system. This is the long way to do it, but if you really have to get the files off your system, it's worth it.
First, go into the C drive, and find the program and manually delete the files. If the system doesn't let you delete the whole folder at one time, it may very well allow you to delete each file at a time. Or, you can sometimes fool the system by renaming the files and then deleting them.
Then, when you've done all you can do manually, do an Advanced Search for all the remaining program files, and delete them that way. (For some reason, the system seems to be more forgiving about deleting files this way, then uninstalling them.)
To get to Advanced Search, press the Windows key on your keyboard + F (or go into the Start Menu, and from inside the Search pane, press F3). That brings up the Search page - click the Advanced Search button to the far top-right, to open the Advanced Search Set Up page. On the Set-Up page, check the 'Include non-indexed, hidden, and system files' option. Under Location, select C Drive, or Computer, or Everywhere, and in the Name box, fill in the name of the program or file you’re looking for, or some text from within the file. Click on the Search button, and that's it. When the files come up, just delete them.
(After this first search is completed, if it was only partially successful, do additional searches for any other key words you think might be associated with that program or file.) The searches could take 10 seconds or 10 minutes, depending on how many files/folders there are to go through, but you'll eventually see extensive search results.
PS: A word of caution: Occasionally, some of the files that will come up in the search may NOT be associated with the application you're trying to delete. If you're not sure, don't delete those files, because you might be deleting something integral to another file or application. You have to be very careful! However, if you do delete something by accident, fortunately, you can always recover it from the Recycle Bin when you catch your mistake.