Windows 10 - enable "show taskbar on all displays"

Taskbar and start menu properties
  - multiple displays
    - show taskbar on all displays

HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\MMTaskbarEnabled: 0x00000001 (enable)














Show taskbar button on:

HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\MMTaskbarMode: 0x00000000

  0x00000000 - all taskbars
  0x00000001 - main taskbar and taskbar where window is open
  0x00000002 - taskbar where window is open



Buttons on other taskbars:

HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\MMTaskbarGlomLevel:

0x00000000 - always combine, hide labels
0x00000001 - combine when taskbar is full
0x00000002 - never combine