This wipes all entries.
The store is the central database used by Windows (Vista and later) to manage boot options, replacing the older boot.ini file found in Windows XP. The primary tool for managing this database is BCDEdit , a versatile command-line utility used for everything from fixing boot errors to setting up dual-boot environments. Essential BCDEdit Commands for Windows Administrators
bcdedit /set guid path \windows\system32\winload.exe bcdedit commands
This command sets the timeout value to 30 seconds.
Boot from Windows USB → Repair → Command Prompt: This wipes all entries
: Copy a Boot Entry
: Set the Default Boot Entry
This command exports the BCD store to a file named bcdbackup on the C: drive.