09-21-2022 01:42 PM
NI has a knowledge base article on this. Basically, uninstall everything from NI Package Manager and then uninstall NIPM from the Add/Remove Programs.
09-22-2022 04:05 PM
Before you do that, first try downloading and installing the latest NI Package Manager first from here. Then, try the install of LabVIEW (or whatever product).