Let’s move on to the procedure for manually restoring the EFI Windows bootloader on a computer with UEFI.
#Bagaimana cara instal ulang laptop pada sistem uefi windows 10
Using BCDBoot to Manually Repair EFI Bootloader in Windows 10 But most likely the result will be negative: Automatic Repair couldn’t repair your PC.
Then select Troubleshoot -> Startup Repair and select the OS whose bootloader you want to try to recover. On the installation screen, click the Restore System. Try to boot your device from the recovery disc or installation Windows 10 media. The procedure for the automatic repair of the bootloader used in the Windows Recovery Environment (WinRE), is usually useless in such cases. If the computer boots with a black screen with the message “Operating System not found”, most likely the Windows bootloader is completely removed. The bcdedit tool doesn’t see this EFI partition, and cannot manage the bootloader configuration on it. The fact is that if Windows 10 is installed in native UEFI mode on a GPT disk, then the Windows 10 EFI bootloader ( Windows Boot Manager) stores the boot manager and BCD configuration on a separate hidden EFI volume (100 MB in size with the FAT32 file system). The requested system device cannot be found. If you try to repair the bootloader on a UEFI computer using the bcdedit tool, you will receive an error like this: The boot configuration data store could not be found. This error indicates that the Windows bootloader configuration – Boot Configuration Data (BCD) has been corrupted or even completely removed. When trying to boot the computer, the following BSOD (Blue Screen of Death) error appears: The boot configuration data for your PC is missing or contains errors. 
The boot configuration data for your PC is missing: EFI\Microsoft\Boot\BCDĪ computer with Windows 10 installed in native UEFI mode will fail to boot if the EFI bootloader is corrupted.
Using BCDBoot to Manually Repair EFI Bootloader in Windows 10. The boot configuration data for your PC is missing: EFI\Microsoft\Boot\BCD.
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