Hello, I am currently having issues booting into Windows on the External SSD Drive. I used Winclone to clone the Bootcamp partition, then restored the image to the external SSD, injected the Apple SSD Driver. Restarting computer, I boot into windows, the windows logo comes up begins to load then Blue screen, Inaccessible_boot_device. I have restarted computer numerous times with the same results, I have added make EFI bootable, no luck, same scenario, tried legacy but that just states no bootable drive detected.
In the “Startup Security Utility” menu select the Apple icon and select “Shut down”. Insert the USB drive in one of the USB ports on the back of the Mac Mini 2018. Press the power button on the back of the Mac Mini and keep the Option (⌥) key pressed for the Startup Manager. Select “EFI Boot” to boot the USB key. Connected my Mac Mini to the eGPU, and the eGPU to the Monitor. Turned On the Mac Mini. Got a black screen, and it looked like the computer rebooted a few times in a row. Nothing was working, so I turned off and on the computer a few times. When I was about to give up, I saw the windows log in screen.
The 2018 Mini has the T2 controller, which may be factor. Older iMacs do not use the T2 controller, so it may just be an issue with drivers, which you reference in your post. Unfortunately the way Apple offer their Boot Camp drivers is via a menu option in Boot Camp Assistant, not via a weblink.
Boot Camp Mac Download
Any suggestions on what to do please. I need to get back into my windows ASAP for work.
I have a 27 inch iMac Late 2013 with Internal SSD (which works fine for the Mac OS) I am on Mac OS Catalina 10.15.5
Mac Mini 2018 Boot Camp External Drive
Original bootcamp partition was part of the local (internal HD) partition. I upgraded the internal drive to an SSD Drive.
Mini 2018 Boot Camp External Drive Kit
Please HELP