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The Windows 7 / 8 / 10 BCD (Boot Configuration Data) Store and BCDEDIT Program - How do I remove BCD from Windows 10? |
- bcdedit - Where is the BCD store physically located? - Super User
How to Rebuild the BCD in Windows - How do I open a BCD file in Windows 10?
Bcd file for windows 10.How to Repair Windows Boot Manager, BCD and Master Boot Record (MBR)?
The command should return the following on screen, meaning the BCD export worked as expected:. At this point, you need to adjust several file attributes for the BCD store so you can manipulate it. At the prompt, execute the attrib command exactly like this:.
What you just did with the attrib command was remove the hidden file , read-only file, and system file attributes from the file bcd. Those attributes restricted the actions you could take on the file. Now that they're gone, you can manipulate the file more freely specifically, rename it. To rename the BCD store, execute the ren command as shown:. Now that the BCD store is renamed, you should now be able to successfully rebuild it, as you tried to do in Step 6.
You could delete the BCD file entirely since you're about to create a new one. However, renaming the existing BCD accomplishes the same thing since it's now unavailable to Windows, plus provides you with another layer of backup, in addition to the export you did in Step 5, if you decide to undo your actions.
Try rebuilding the BCD again by executing the following, followed by Enter :. It should produce this in Command Prompt:. This means the BCD store rebuild is progressing as expected.
At the Add installation to boot list? You should see this on the screen to show that the BCD rebuild is complete:. Restart your computer. Assuming that an issue with the BCD store was the only problem, Windows should start as expected. Depending on how you started Advanced Startup Options or System Recovery Options, you may need to remove a disc or flash drive before restarting.
If rebuilding the BCD didn't solve the problem you were having, continue troubleshooting to fix freezing and other issues that may prevent Windows from booting normally.
If you still have issues, use the Diskpart command to make your Windows installation the active drive. Rebuilding the BCD doesn't affect your personal data or settings in any way, so you can continue to use your computer as normal. When you visit this site, it may store or retrieve information on your browser, mostly in the form of cookies. Cookies collect information about your preferences and your device and are used to make the site work as you expect it to, to understand how you interact with the site, and to show advertisements that are targeted to your interests.
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Reviewed by Chris Selph. Tweet Share Email. What to Know If the Windows boot configuration data BCD store is missing, corrupted or improperly configured, you have to fix Windows startup issues. There are two major variations on the Windows boot theme.
The OS disk on this system is Disk 4. This is confirmed by the asterisk at the far right in the Disk 4 entry in Figure 2. As is so often the case in Windows, one can choose how to work with boot configuration data in Windows At the command line, Windows supports a number of instructions that manipulate the BCD, either directly or indirectly.
Working with BCD is the only aspect of Windows administration that is even more dangerous than working with the Registry. That way, worst case, you can always boot to the rescue disk and use it to restore the image backup with the old, presumably working BCD partition s and restore the system to operational status. Table 1 lists the key Windows commands that support boot and BCD related manipulation and repair, along with reference links and other admonitions. What you see in Figure 3 is a BCD store with two entries.
The first entry is for the Windows Boot Manager which picks up the handoff from PC firmware and guides the process to the point where the OS takes over. It shows an association with Drive C: and a path to the winload.
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