Hi Igor, Thank you for getting back to me so quickly. Your intuition about the USB bottleneck is spot on, and I was indeed operating under a severe hardware constraint. During the 7-Zip operation, I was simultaneously running a 97 GB ROBOCOPY from my internal SSD to the exact same USB 3.0 destination drive. I had to do this out of necessity due to limited free space on the host (SSD) C: drive (99.9% full), which also forced me to place the temp folder on the same USB 3.0 drive. Here are the system...
user interface misleading
Get a certificate and get slimware out of the picture