Mixed Reality can be removed from the main page of Settings via Registry Editor:
Note: Making changes to the registry has risks, we strongly suggest that you back up the registry using this
link before proceeding.
1. Close Settings if the Mixed Reality app is open.
2. Open the
Registry Editor.
3. Go to the following Registry Key:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Holographic4. Modify/create a new 32-bit DWORD value named
FirstRunSucceeded. Set the value date to 1 to add
Mixed Reality to Settings. Set it to 0 if you wish to remove it. (If you're using Windows 10-64 bit, you still need to create a 32-bit DWORD value.)
5. Restart your PC and go to the Settings app. If you set the DWORD value to
0, Mixed Reality should be gone.
If the issue remains, please send a feedback to report it.