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I was downloaded the wrong version of NI package manager and then tried to uninstall it. Now, everything I try to download is corrupted and I cannot get the course curriculum I need for school. Any suggestions?
Tim's answer is correct. The problem is that you need NIPM to uninstall anything that NIPM installed. If you "rip things out" willy-nilly, your recovery method will start with (1) Reformat the C: Drive, (2) Reinstall Windows. (3) Reinstall everything else. (4) Reinstall LabVIEW. [Trust me, I learned this the hard way, twice!].
You are absolutely correct, unfortunately I could not undo the damage I inflicted "wily-nilly" by myself. I was supposed to go in through NI package manager to selected and remove unwanted items. That is the only way to remove the unwanted stuff before reloading it.