How do I replace the system shell (explorer.exe) with another process in Windows 10?

Question

This is for Windows 10.

Is there a way to replace explorer.exe with, for example, a powershell script?

I'm looking to start a custom shell application without having to have explorer.exe run in the background or handle the startup of those items.

EDIT: Since I'm getting down voted... I was capable of doing something similar in Windows Embedded 7 Standard. I added a key called Shell to

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System

The key added there had Powershell.exe with command line options to execute script silently. There I was able to execute my custom shell.

This does not work with Windows 10.

Answer 1

This is stored in the key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell

Replace this with whatever you want, but the software it loads in place will then need to provide a way to log out/shut down/restart the machine, or you'll need to use Task Manager to do so.