To fix the above Error, you must have a Windows 8 installation disk (usb/dvd). Boot the installation disk Click "Repair" your computer Click "Troubleshoot" button Click "Advanced option" button Click "Command Prompt" button Once the cmd opened, enter "bcdboot c:\windows" (note: without qoutes;c:\ is where your windows folder located) Reboot the computer Reference: http://www.kapilarya.com/fix-the-boot-configuration-data-file-is-missing-some-required-information
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