Restore Error: Error Creating EFI File

I made an image of the boot camp partition with Winclone 7. I thought I could clone it back if anything went wrong. But on restore, Winclone 6 and 7 had this error:

“Restore Error: Error Creating EFI File”

What does this mean? How do I fix this?

What I have:

iMac 2017
Mac OSX 10.13.6 High Sierra
Processor 4.2 GHz Intel Core i7
Memory 32 GB
2T Fusion Drive
Windows 10 ISO downloaded from Microsoft
Winclone 7.2

This should help resolve the issue:


Please, how do I fix this?
I’ve read the link.

I don’t have security or anti-virus software installed (other than the OS).

On at least two occasions the EFI partition was mounted before/after restore. I can write to it. And I got the same error.

If you run “diskutil list”, you should see an EFI partition at disk0s1:

Timothys-MacBook-Pro:~ tperfitt$ diskutil list
/dev/disk0 (internal):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                         1.0 TB     disk0
   1:                        EFI EFI                     314.6 MB   disk0s1
   2:                 Apple_APFS Container disk1         950.0 GB   disk0s2
   3:       Microsoft Basic Data Windows                 50.1 GB    disk0s3
   4:                 Apple_Boot Boot OS X               134.2 MB   disk0s4

You can then try mounting it by running the diskutil command:

sudo diskutil mount disk0s1

(enter your password if prompted)

If you get an error, then EFI partition is either prevented from being mounted from something else or it is corrupted. It is also possible that the EFI partition is not on the first partition, which I have seen but is very rare.