Modifying boot option BCDedit.exe for windows 7

Posted: April 15, 2012 in Tips and Tricks

Its for modifying the bcdedit.exe from command line of windows 7.
I generally wrote it for multi boot option modification.
—–Note: Don’t forget to open Command prompt as “Administrator”.  Just right click the command prompt and click “Run as Administrator”.

Command-line Help

bcdedit /? Shows all commands one is able to use

bcdedit.exe /? CREATESTORE Shows detailed information for the command CREATESTORE or any other command available in bcdedit as shown when running bcdedit /? followed by the particular command more information is required for.

bcdedit or bcdedit /enum all Shows the current structure of your boot configuration data.
The GUID tags {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx} of all Windows installations present on your computer will be displayed.

Create a Backup

It is strongly recommended that one creates a backup of the BCD store before making any changes to it.

bcdedit /export “D:\BCD Backup\Bcd Backup” Creates a backup to a pre-created folder, in this case “BCD Backup” on drive D:

bcdedit /import “D:\BCD Backup\Bcd Backup” Restores the backup previously created

Making Changes to the Boot Configuration Data

Before making any changes or attempting to use the commands below, run the command bcdedit or bcdedit /enum all to make sure that you use the correct GUID tag. These have been seen to change from build to build and it may be necessary to use {ntldr} instead of{legacy} for example.

bcdedit /set {legacy} Description “Windows XP Professional SP2” Changes the text description of the “Legacy” OS line in the boot menu. The quotation marks must be included in the command

bcdedit /set {current} description “Windows Vista Build 5270 x86” Changes the text of the boot menu line for the Vista or non-Vista installation one is currently booted to, from the default “Microsoft Windows” or other description to that shown in the quotation marks

bcdedit /set {current} description “any name” …. for changing to any name you want.

bcdedit /set {5189b25c-5558-4bf2-bca4-289b11bd29e2} description “Windows Vista Build 5270 x64” Changes the text of the boot menu line for any other Vista installation. One must use the GUID for that particular installation as shown when one runs thebcdedit or bcdedit /enum all command

bcdedit /default {current} Sets the current Windows installation one is booted to as the default Windows boot OS

bcdedit /default {5189b25c-5558-4bf2-bca4-289b11bd29e2} Sets the referenced Windows OS as the {default} Windows boot OS

bcdedit /default {legacy} Sets the legacy (Windows XP) OS as {default} boot item

bcdedit /displayorder Sets the display order of boot menu items for example:

bcdedit.exe /displayorder {legacy} {current}

bcdedit /timeout 15 Changes the default 30 second time-out of the boot menu to 15 seconds or any other value inserted.

Correcting changes to the Partition/Disk structure

Where a partition or a hard drive has been added or removed and has caused the partition/disk structure to change, this can be corrected by running these commands in the order shown:

X:\>X:\boot\fixntfs.exe -lh -all (Where X: is the drive/partition on which the folder “boot” is to be found)

bcdedit /set {5189b25c-5558-4bf2-bca4-289b11bd29e2} device partition=X: Changes boot partition of the OS whose GUID is indicated. (Where X: is new drive/partition required). Must be used together with the osdevice command below

bcdedit /set {5189b25c-5558-4bf2-bca4-289b11bd29e2} osdevice partition=X: Changes boot partition of the OS whose GUID is indicated. (Where X: is new drive/partition required). Must be used together with the device command above

Msconfig – System Configuration Utility

The System Configuration Utility (msconfig) is accessible from the Windows Vista start menu, Start>All Programs>Accessories>System Tools>System Configuration. It has limited funcionality as regards the BCD store however, with the only relevant functionalities being to change the default boot operating system, to delete a boot menu item and to change the timeout display period of the boot menu.

CAUTION: Making incorrect or invalid changes to one’s BCD store can result in the system no longer booting and only those comfortable with using command line entries and who understand the inherent risks of making a mistake should do so.

Advanced Options

Please do not run these commands unless you know what the outcome will be.

bcdedit /set {current} numproc 2

bcdedit /set {current} removememory 0

For information on editing the BCD (Boot Configuration Data) when installing a “legacy” Operating System AFTER Windows Vista see How To: Modify BCD using bcdedit when install XP after Vista

  1. dimasdwic says:

    why you didn’t show the screen shoot , so the reader more understand your tutor,

Leave a Reply

Please log in using one of these methods to post your comment: Logo

You are commenting using your account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.