BCDEdit Operation to Control Emergency Management Services for a boot application

BCDEdit /bootems

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

Syntax

bcdedit /bootems [<id>] { ON | OFF }

Parameter

<id> [...]Specifies the identifier of the entry to be modified. Although this command will work for any entry, it is only effective for boot applications.

Example

The following command enables Emergency Management Services for the boot manager: bcdedit /bootems {bootmgr} ON

BCDEdit /ems

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

Syntax

bcdedit /ems [<id>] { ON | OFF }

Parameter

<id>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

BCDEdit /emssetting

This command sets the global Emergency Management Services settings for the system. Emssettings does not enable or disable Emergency Management Services for any particular boot entry.

Syntax

bcdedit /emssettings [ BIOS ] | [ EMSPORT:<port> | [EMSBAUDRATE:<baudrate>] ]

Parameter

BIOSSpecifies that the system will use BIOS settings for the Emergency Management Services configuration. This works only on systems that have Emergency Management Services support provided by the BIOS. <port>Specifies the serial port to use as the Emergency Management Services port. This should not be specified with the BIOS option. <baudrate>Specifies the serial baud rate to use for Emergency Management Services. This command should not be specified with the BIOS option. <baudrate> is optional, and the default is 9,600 baud.

Example

The following command sets the Emergency Management Services parameters to use BIOS settings: bcdedit /emssettings BIOS The following command sets the Emergency Management Services parameters to use com2: at 115,200 baud. bcdedit /emssettings EMSPORT:2 EMSBAUDRATE:115200

Sources and References

• https://docs.microsoft.com/en-us/windows-hardware/drivers/devtest/bcd-boot-options-reference
• https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/bcdedit
• https://docs.microsoft.com/en-us/windows-hardware/manufacture/desktop/bcdedit-command-line-options
• https://docs.microsoft.com/en-us/windows-hardware/drivers/devtest/bcdedit--set
• https://atomicit.ca/kb/articles/how-to-fix-windows-7810-boot-problem-with-bcdedit/
• https://neosmart.net/wiki/bcdedit/#BCDEdit_on_Windows_8