If you do not want shell enhancements to exist on your computer in any form what so ever you will need to uninstall it totally.
These are not third party softwares they are operating system enhancements that need running processes exactly as the rest of an os does.
Just as with those other processes you can kill them directly...
If you don't want to ever see them you can at least uninstall, unlike most processes locked in by Microsoft's os itself.
Most if not all shell enhancements retain processes simply because they are requested originally by the user/installer.
If you cannot cope with non-existent loadings from shell enhancements even when disabled then uninstall all of them and accept the limitations of the default MS operating system.