Permit locking the screen

Setting the policy to Enabled or leaving it unset lets users who authenticate with a password lock the screen.

Setting the policy to Disabled means users can't lock the screen. (They can only sign out from the user session.)

Supported on: At least Microsoft Windows 7 or Windows Server 2008 family

Registry HiveHKEY_CURRENT_USER
Registry PathSoftware\Policies\Google\ChromeOS
Value NameAllowScreenLock
Value TypeREG_DWORD
Enabled Value1
Disabled Value0

chromeos.admx

Administrative Templates (Computers)

Administrative Templates (Users)