I mentioned this in another thread, about Silver Efex Pro 3 hanging when called from Photolab 5 and Lightroom, but posting again in the hope of some insight. In attempting to resolve the problem I tried to uninstall Nik, but discovered it was not listed, either under Apps & Features in Settings or Programs & Features in Control Panel. I finally was able to uninstall it using the Microsoft Install/Uninstall troubleshooter (which surprised me because these troubleshooters hardly ever seem to work). After a new install the hanging issue was fixed. But Windows still doesn’t list Nik as an installed program. Can anyone explain this behavior?
I did read this:
but it doesn’t seem to be precisely the same problem.