Instead of downloading a file, you must the BCD store using official Windows tools. Why You Can't Download a BCD File
Before using manual commands, try the built-in repair tool from Microsoft Support . windows 10 boot bcd file download
When you encounter errors like "The Boot Configuration Data for your PC is missing" (error codes 0xc0000034 or 0xc000000f), you might be tempted to search for a "Windows 10 boot BCD file download." However, . It is a system-specific database that contains boot configurations unique to your hardware and installation. Instead of downloading a file, you must the