Turn off switching between recent apps
Supported on: At least Windows Server 2012, Windows 8 or Windows RT
Registry
HKCU
Software\Policies\Microsoft\Windows\EdgeUI Value name: TurnOffBackstack
Enabled: TurnOffBackstack = 1
Disabled: TurnOffBackstack = 0
Description
If you enable this setting, users will not be allowed to switch between recent apps. The App Switching option in the PC settings app will be disabled as well. If you disable or do not configure this policy setting, users will be allowed to switch between recent apps.