Bcdedit

bcdedit Command Cheatsheet

Understanding bcdedit Blocks

Running bcdedit without arguments displays the boot configuration blocks, each with its identifier:

C:\Users\Administrator> bcdedit

Windows Boot Manager
--------------------
identifier              {bootmgr}
device                  partition=\Device\HarddiskVolume1
path                    \EFI\Microsoft\Boot\bootmgfw.efi
description             Windows Boot Manager
locale                  en-US
inherit                 {globalsettings}
default                 {current}
resumeobject            {2e778b72-f5bc-11ef-942a-884e54a024e9}
displayorder            {current}
toolsdisplayorder       {memdiag}
timeout                 10

Windows Boot Loader
-------------------
identifier              {current}
device                  partition=C:
path                    \Windows\system32\winload.efi
description             Windows 10
locale                  en-US
inherit                 {bootloadersettings}
isolatedcontext         Yes
allowedinmemorysettings 0x15000075
osdevice                partition=C:
systemroot              \Windows
resumeobject            {2e778b72-f5bc-11ef-942a-884e54a024e9}
nx                      OptIn
bootmenupolicy          Legacy

General Syntax:

bcdedit /set <{identifier}> <parameter> <value>

Modifying Boot Manager

Set timeout for selection menu:

bcdedit /set {bootmgr} timeout <value>

Set OS display order:**

bcdedit /set {bootmgr} displayorder <OS1> <OS2> …

Set default OS:

bcdedit /set {bootmgr} default <{identifier}>

Set boot manager language:

bcdedit /set {bootmgr} locale <language_code>

Modifying Operating System Entries

Change displayed name in menu:

bcdedit /set <{identifier}> description "Your OS Name"

Set OS partition:

bcdedit /set <{identifier}> device partition=<drive_letter>:

Modify winload.exe path:

bcdedit /set <{identifier}> path <path_to_winload.exe>

Enable/disable Hyper-V:

bcdedit /set <{identifier}> hypervisorlaunchtype <auto|off>

Other Useful Commands

List all entries:

bcdedit /enum all

Create a new OS entry:

bcdedit /copy {current} /d "New OS Entry"

Delete an entry:

bcdedit /delete <{identifier}>

Restore default BCD settings:

bcdedit /import <backup_file>

Export BCD for backup:

bcdedit /export <backup_file>

Troubleshooting with bcdedit

Repair Boot Configuration:

bootrec /rebuildbcd

Set Safe Mode boot:

bcdedit /set {current} safeboot minimal

Enable Legacy Boot Menu (F8 on startup):

bcdedit /set {bootmgr} displaybootmenu yes

Disable Driver Signature Enforcement:

bcdedit /set nointegritychecks on

Enable Debugging Mode:

bcdedit /set {current} debug on

Tools

https://neosmart.net/EasyBCD/

On this page