This command enables or disables Emergency Management Services for the specified operating system boot entry. bcdedit /ems ...

This command enables or disables Emergency Management Services for the
specified operating system boot entry.

bcdedit /ems [] { ON | OFF }

        Specifies the identifier of the entry to be modified.  Only
            "Windows boot loader" entries can be specified. If not specified,
            {current} is used. For more information about identifiers, run
            "bcdedit /? ID".

Example:

The following command enables Emergency Management Services for the current
operating system boot entry:

    bcdedit /ems ON

This command delivers a wrapped TPM command to the TPM within a transport session. The TPM unwraps the command and then runs ... This command disables the TPM. This command requires physical presence at the computer and cannot be run by the operating ... This command does not operate on OEM, ESP, or recovery partitions. Hidden volume such as OEM, ESP and recovery partitions ... This command enables or disables Emergency Management Services for the specified entry. bcdedit /bootems { ON | OFF } Specifies ... This command enables or disables Emergency Management Services for the specified operating system boot entry. bcdedit /ems ... This command enables or disables the boot debugger for the specified boot entry. Although this command works for any entry, ... This command enables or disables the kernel debugger for the specified boot entry. bcdedit /debug { ON | OFF } Specifies ... This command enables or disables the remote event logging for the specified boot entry. bcdedit /event { ON | OFF } Specifies ... This command enables the TPM. This command requires physical presence at the computer and cannot be run by the operating ...