Enables the local copy of the Windows Recovery Environment (Windows RE). This command can be used from the running operating ...

Enables the local copy of the Windows Recovery Environment (Windows RE).

This command can be used from the running operating system without additional
parameters, or from the Windows Preinstallation Environment (Windows PE) using
the optional /osguid parameter. 

%1 /enable [/osguid ]

       Specifies the Boot Configuration Data (BCD) identifier of the
                 target Windows installation. The identifier can be determined
                 by running "bcdedit -enum -v".

  Example:
    %1 /enable
    %1 /enable /osguid {00000000-0000-0000-0000-000000000000}