If you are facing startup issues on your Windows device, then these issues can easily be fixed by using the bootrec /fixboot command; however, there are situations when you do not have access to use this command. There are different situations when a user might receive the message ‘bootrec not recognized’ when using this error, and if you are wondering how to get this error fixed, then use the methods we have shared here. 

Method 1: Give the EFI partition a drive letter through the diskpart command

The first method requires using DiskPart to give the EFI partition a drive letter. The EFI System Partition functions as an essential element for UEFI systems. The system preserves essential bootloader files, which enable Windows start-up processes to occur without interruptions.

The system needs a drive letter for the ESP because its absence will result in recovery operations, which will make it impossible to access the partition. The partition becomes visible after you assign a drive letter, which enables users to perform operations on it. The system will make changes to your system if you choose the incorrect volume. If you do not know which volume to choose with its corresponding drive letter, you should seek advice from an expert.

Method 2: Create the Boot Configuration Data (BCD) again

The second method requires users to create a new Boot Configuration Data BCD database. The Boot Configuration Data BCD functions as a critical database that stores essential information needed to initiate Windows startup. The file enables operating system startup by guiding the bootloader to the necessary system components.

The system will not start because of BCD corruption, which makes the BCD unavailable. The BCD restoration process requires users to rebuild the BCD because it restores essential configuration data, which enables bootloader operation.

We understand that these solutions are a little complex. You can refer to the website Datarecovee to explore these methods more.