resizing disks

Hello, We have a bunch of PCs with extremely large EFI partitions, over 120GB. Wanted to use Disk Genius to shrink it. When I run DG from Windows I'm able to apply settings and set new EFI partition size, but when confirmed, it asks me to reboot to WinPE environment. After reboot, I'm getting...

At present I have a 2 TB HD running windows 7 that is low on disk space, I want to clone to a 3 TB HD so I can upgrade to windows 10 or 11. Straight cloning only resulted with an HD that was still low on disk space and a whole 1 TB of unallocated space that EaseUS could not extend to. Of course...