I've looked before posting, there is no option to uninstall Mixed Reality Portal. I uninstalled all built-in apps with PowerShell anyway, didn't need CCleaner for that.
What I did was follow the steps outlined here: https://winaero.com/blog/uninstall-mixed-reality-windows-10/ and delete the following folder from the C:\Windows\SystemApps folder: Microsoft.Windows.HolographicFirstRun_cw5n1h2txyewybak
Mixed Reality Portal is not in my Control Panel anymore, but there is this phantom shortcut to the application in the shell:AppsFolder that I cannot get rid of. It even appears in my Classic Shell start menu:
My new question is if it is possible to even delete this shortcut. There is no option to do so:
Edited by ScarXL, 13 May 2018 - 12:20 AM.