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Win7's BCD rewriting tutorial Windows Boot Manager is Global trade intelligence whitepapersa boot program for Windows system. It runs when the computer starts and reads Boot Config Uration Data (BCD) and transfer control to the kernel of the operating system. The BCD rewriting tutorial of Win7 is a very practical Windows system tutorial. This article will introduce you to the methods and steps of rewriting the BCD of Win7. There are several steps to rewrite the BCD of Win7: Step 1: Back up the original BCD. Before you start to modify the BCD, it is recommended that you back up the original BCD. Please use the following command to back up BCD: 1. Open the command line tool.Right-click the [Start] button and select the [Command Line (Administrator)] option. Two. Enter the following command in the command line window: bcdedit /export C:\BCD-backup This command saves the BCD backup in the C:\BCD-backup directory. Step 2: Restore the default settings. Restoring the default settings can solve the problems related to BCD. The following is an example of using this step: 1. Open the command line tool. Two. Enter the following command in the command line window: ren c:\boot\bcd bcd.old This command will rename the original BCD file. 3. Enter the following command: bootrec /rebuildbcd This command will create a new BCD file. Four.Enter the following command: bootrec /fixmbr This command will repair the master boot record. 5. Enter the following command: bootrec /fixboot This command will update the boot sector of the system boot partition. 6. Finally, restart the computer and check whether the problem has been solved. Step 3: Manually edit BCD. If restoring the default settings does not solve the problem, you need to edit the BCD manually. Use the following command to open the BCD editor: 1. Open the command line tool. Two. Enter the following command in the command line window: bcdedit /store C:\Boot\BCD This command will open the BCD editor. 3. Use the BCD editor to edit the items that need to be changed. Four. After confirming the change, enter the following commandSave changes: bcdedit /export C:\Boot\BCD This command saves the changes to the BCD file. 5. Finally, restart the computer and check whether the problem has been solved. Summary: Rewriting the BCD of Win7 can solve many startup-related problems. Before rewriting the BCD, it is better to back up the original BCD. If the default setting recovery is invalid, please consider manually editing BCD. Using the commands in this tutorial can help you avoid more trouble when dealing with BCD problems.

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