Hey, Ken,

Before you drop this entirely, I'd like you to have a look at the material here: Add Change Owner to Context Menu in Windows 10.

I didn't know that was here on Ten Forums until a few mins ago, and I think that Shawn either just didn't notice our conversation or was waaaay too busy to get into it in the last couple of days, or he might have directed you to this possible (nay, probable) solution.

But, of course, be sure you have a fresh image before you install this context button and try it.

Good luck, whatever you decide to do, but if you try this method of restoring TrustedInstaller, please post here to let us know.

And then, of course, you can remove the two commands from your context menus if you like.