How to Restore Deleted Windows Partition after Windows Can't Boot?


For a system disk with GUID Partition Table, there is an EFI system partition (ESP) which refers to a partition used by computers adhering to the Unified Extensible Firmware Interface (UEFI). When your computer is booted, UEFI firmware loads the files on this ESP partition to start the installed operating system and various utilities. Usually, EFI system partition is formatted with FAT file system. From the definition of ESP partition, you know once EFI system partition is lost, Windows will be unbootable because of the missing boot files.
When installing an operating system such as Windows 10/8/7 to a clean formatted MBR disk, the system reserved partition will be created at the beginning of your hard disk with the active status. This partition contains three important things including the Boot Manager and Boot Configuration Data, and the startup files used for BitLocker drive encryption.

Once you accidentally delete system reserved partition, Windows will fail to boot due to missing BOOTMGR and BCD. And it is possible that BOOTMGR is missing or operating system not found error message appears.

So, what should you do to recover deleted Windows system partition? Look at the following content to know the methods for lost system partition recovery in two cases.

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Created by Vera 4 years 9 weeks ago – Made popular 4 years 9 weeks ago
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