Demystify EFI Partition on New MacBook Pro 2017

I have re-installed my new MacBook Pro 15-inch 2017 with Touch Bar from the scratch after wiping out everything from SSD. Now I’m afraid, am I missing something???

All the content of EFI partition which I have now re-created just by it self automatically, but If I compare my fresh re-created EFI partition with backup which I made before, the original “out of the store” configuration I see some files in my current system’s EFI partition missing.

This is 'ls' of my current EFI partition after reinstallation:

total 16

-rwxrwxrwx 1 administrator staff 3948 Mar 2 14:00 BOOTLOG

drwxrwxrwx 1 administrator staff 4096 Feb 28 05:04 EFI

EFI/EFI:

total 8

drwxrwxrwx 1 administrator staff 4096 Mar 2 14:55 APPLE

EFI/EFI/APPLE:

total 32

drwxrwxrwx 1 administrator staff 4096 Feb 28 13:09 CACHES

drwxrwxrwx 1 administrator staff 4096 Feb 28 05:04 EMBEDDEDOS

drwxrwxrwx 1 administrator staff 4096 Feb 28 05:20 EXTENSIONS

drwxrwxrwx 1 administrator staff 4096 Mar 2 14:55 UPDATERS

EFI/EFI/APPLE/CACHES:

total 8

drwxrwxrwx 1 administrator staff 4096 Feb 28 13:09 CAFEBEEF

EFI/EFI/APPLE/CACHES/CAFEBEEF:

EFI/EFI/APPLE/EMBEDDEDOS:

total 60312

-rwxrwxrwx 1 administrator staff 209892 Feb 28 05:04 FDRData

-rwxrwxrwx 1 administrator staff 30660070 Feb 28 05:04 combined.memboot

-rwxrwxrwx 1 administrator staff 359 Feb 28 05:04 version.plist

EFI/EFI/APPLE/EXTENSIONS:

total 30728

-rwxrwxrwx 1 administrator staff 15729264 Mar 2 15:14 Firmware.scap

EFI/EFI/APPLE/UPDATERS:

total 8

drwxrwxrwx 1 administrator staff 4096 Mar 2 15:20 MULTIUPDATER

EFI/EFI/APPLE/UPDATERS/MULTIUPDATER:

total 344

-rwxrwxrwx 1 administrator staff 91832 Mar 2 15:20 HPMUtil.efi

-rwxrwxrwx 1 administrator staff 78776 Mar 2 15:20 MultiUpdater.efi

And this is 'ls' of original EFI partition how i got it from Apple Store:

total 8

drwxrwxrwx 1 administrator staff 4096 Jan 1 2017 EFI

EFI/EFI:

total 8

drwxrwxrwx 1 administrator staff 4096 Jan 23 08:34 APPLE

EFI/EFI/APPLE:

total 32

drwxrwxrwx 1 administrator staff 4096 Jan 23 08:34 EMBEDDEDOS

drwxrwxrwx 1 administrator staff 4096 Jan 22 14:56 EXTENSIONS

drwxrwxrwx 1 administrator staff 4096 Jan 22 16:52 FIRMWARE

drwxrwxrwx 1 administrator staff 4096 Jan 1 2017 UPDATERS

EFI/EFI/APPLE/EMBEDDEDOS:

total 60312

-rwxrwxrwx 1 administrator staff 209892 Jan 23 08:33 FDRData

-rwxrwxrwx 1 administrator staff 30660210 Jan 23 08:34 combined.memboot

-rwxrwxrwx 1 administrator staff 404 Jan 23 08:34 version.plist

EFI/EFI/APPLE/EXTENSIONS:

total 30728

-rwxrwxrwx 1 administrator staff 15729264 Feb 3 14:04 Firmware.scap

EFI/EFI/APPLE/FIRMWARE:

total 16384

-rwxrwxrwx 1 administrator staff 8388608 Jan 22 16:52 MBP143_0167_B00_LOCKED.fd

EFI/EFI/APPLE/UPDATERS:

total 8

drwxrwxrwx 1 administrator staff 4096 Jan 1 2017 TBTH

EFI/EFI/APPLE/UPDATERS/TBTH:

total 2440

-rwxrwxrwx 1 administrator staff 512000 Jan 1 2017 Mac-551B86E5744E2388-TBT-NVM-C0-23.1-S109-P_C0-5.52.0-SS-R0.bin

-rwxrwxrwx 1 administrator staff 512000 Jan 1 2017 Mac-551B86E5744E2388-TBT-NVM-C0-23.1-S109-P_C0-5.52.0-SS-R1.bin

-rwxrwxrwx 1 administrator staff 225048 Jan 1 2017 ThorUtil_7.69.efi

Unfortunately many of these efi files are not documented anywhere where I was looking. Does anybody know what are the ThorUtil_7.69.efi and two bin files Mac-551B86E5744E2388-TBT-NVM-C0-23.1-S109-P_C0-5.52.0-SS-R0.bin and Mac-551B86E5744E2388-TBT-NVM-C0-23.1-S109-P_C0-5.52.0-SS-R1.bin in folder EFI/APPLE/UPDATERS/TBTH? Also there was FIRMWARE file before MBP143_0167_B00_LOCKED.fd which I don’t have now. These files are missing on my new EFI partition but they were present on “out of the store” configuration. I’m just afraid if they are essential for something what I don’t know? Should I maybe copy those files from backup to my current EFI partition? But would they be valid after clean system re-installation? Is it possible just to copy whatever to EFI partition by my self?

Also I realized just few days ago, on my current system’s EFI partition appeared two files in EFI/APPLE/UPDATERS/MULTIUPDATER, HPMUtil.efi and MultiUpdater.efi maybe after 10.13.3 Supplemental Update but I have no idea what these are, what they do, why I have them now even if they were not present in “out of the store” configuration.

Thank you guys in advance for any useful peace of information or if you can maybe point to some documentation where I can figure out whats going on here with all those EFI updates, etc.

Have great day everyone, best regards,

Manoli