Go to Repair your computer, when prompted. Find a Windows 7 or 8 installation media, either DVD or USB, and boot from it.Ģ. What if when things really went wrong, such as message like BOOTMGR is Missing, that prevents you from booting into any of boot system you have on your computer? When this happens, here is what you can do:ġ. If you are still able to boot and have a need to restore your BCD store to the previously state, you can run the following command in a Command Prompt window that runs as Administrator:īcdedit /import filepath\filename How to rebuild the BCD store It’s a good idea saving the file on an external storage, e.g. To make a backup copy of your BCD store, open Command Prompt as Administrator and run the following command: This post is to show you how to properly make a backup copy of your BCD store and how to restore them, as well as how to rebuild the store when something really went wrong. So it’s important to have a good backup copy of your BCD Store before you do anything, such as setting up dual- or multi- boot system, that involves making changes to it.
When it’s missing or becoming corrupted, or miss configured, your Windows System won’t be able to start. BCD (Bootable Configuration Store) Store contains very important information to properly boot up your Windows system.
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