Well I'm trying to uninstall netbeans 8.2 because I was not running the IDE anymore so I can do a clean installation. But at the moment of running the uninstall wizard it gives me a message about the component "nb-base /8.2.0.0.201610071157" which was not found and the uninstall wizard is closed.
to be able to perform the uninstallation you should delete that folder that in my case using Windows 10 I have it at the following address:
C: \ Users \ YourUser \ .nbi \ product-cache \ nb-base \ 8.2.0.0.201609300101
I recommend directly deleting the .nbi folder completely
PS: in order to see this folder you must in the same file browser enter Files-> Folder Options, View tab and check the option "Show files, folders and hidden units".
Greetings and I hope it serves you.