: Indicates that it is built for 64-bit architecture systems.

The UEFI filesystem cannot locate the .bin file. Fix: UEFI is case-sensitive. Ensure the filename matches exactly. Place the file on the same drive as eeupdate64eefi.efi and use full paths, e.g., FS0:\firmware\update.bin .

Copies the EEPROM/Shadow RAM memory contents to a .eep file and the flash memory to a .bin backup file. eeupdate64e.efi /NIC=1 /MAC=AABBCCDDEEFF