I recently installed Photoshop 2020 and it picked up the ON1 extension from a previous version. I don't want this so I uninstalled it but the extension is still in the list as 'ON1' when I click 'Window->Extensions'. I have searched the C drive and deleted every ON1 folder with any remaining files and I have run a script I found online claiming to remove avery vestige of ON1 software, but to no avail.
If I click on Window->extensions->ON1 it just opens an empty panel. Obviously PS is picking this up from somewhere but it is not in any Plugin folder so how can I get rid of it? I am running Windows 10 (build 1909) 64-bit.