BCD Editor (Bcdedit.exe) is a command-line utility that lets you view and manage the BCD store. To use BCD Editor:
Click Start, point to All Programs, and then click Accessories.
Right-click Command Prompt, and then click Run As Administrator.
at the command prompt.
Armed with the right set of commands, you can use bcdedit to:
- Create, import, export, and identify the entire BCD store.
- Create, delete, and copy individual entries in the BCD store.
- Set or delete entry option values in the BCD store.
- Control the boot sequence and the boot manager.
- Configure and control Emergency Management Services (EMS).
- Configure and control boot debugging as well as hypervisor debugging.
summarizes commands you can use when you are working with the BCD store.
Note that BCD Editor is an advanced command-line tool and you should attempt to modify the BCD store only if you are an experienced IT pro. As a safe¬guard, you should make a full backup of the computer prior to making any changes to the BCD store. Why? If you make a mistake, your computer might end up in a non-bootable state, and then you would need to initiate a recovery.
Here’s a list of commands you can use with BCD Editor and a description of what each does:
Enables or disables boot debugging for a boot application.
Enables or disables Emergency Management Services for a boot application.
Sets the one-time boot sequence for the boot manager.
Makes copies of entries in the store.
Creates new entries in the store.
Creates a new (empty) boot configuration data store.
Sets the global debugger parameters.
Enables or disables kernel debugging for an operating system entry.
Sets the default entry that the boot manager will use.
Deletes entries from the store.
Deletes entry options from the store.
Sets the order in which the boot manager displays the multiboot menu.
Enables or disables Emergency Management Services for an operating system entry.
Sets the global Emergency Management Services parameters.
Lists entries in the store.
Exports the contents of the system store to a file. This file can be used later to restore the state of the system store.
Sets the hypervisor parameters.
Restores the state of the system store by using a backup file created with the /export command.
Creates a mirror of entries in the store.
Sets entry option values in the store.
Sets the system store device. This only affects EFI systems.
Sets the boot manager timeout value.
Sets the order in which the boot manager displays the tools menu.
Sets output to verbose mode.