Norton 360 uninstalled after reverting back to windows 7 from windows 10

as a result of no wifi after the windows 10 install i reverted back to windows7 . however Norton 360 failed to do the same though installed into windows 10 fine just didnt revert back.

deleted the said device in my norton account to free up a licence key, downloaded file however when i try to activate the installed download manager it says there are existing files and computer just needs a restart.

Nothing happens though .... and no programs files either 

thoughts anybody