Just tried installing essential 12 on my window 10 system to gain access to Movie Maker.  All went well to the end of the  installation and when it was getting to exit I received messages about missing files:  WLDCore.dll, wldlog.dll, UXCore.dll, and UXContacts.dll.

I have no idea where there are, if they are windows files,  some other program,  and even if they did I have no idea as to how to reinsatall them.