Windows 10 1903 Black Screen

There is a possibility that the image got corrupted on the capturing process. 

Was the image created to "automatically joint the domain" on the unattended XML form? If yes, try capturing set up as workgroup.

The best practice is to build a new virtual machine on Hyper V applying the following settings.

Note: If using Windows 10 Pro or Education, download a free ISO from Windows Media Creation tool. Do not update the OS via automatic updates.   

            https://www.microsoft.com/en-us/software-download/windows10

Do not update the OS via automatic updates to avoid Sysprep issues.    

1. Launch Hyper-V Manager and on the top Main Menu>New>Virtual Machine>Next
2. Name your VM and save in a specific folder
3. Specify Generation: Generation 2
4. Assign Memory: Depends on the computer’s memory capacity but the minimum is 2 gigabytes            Note: On 8 gigabytes memory: Best performance setting is 3 gigabytes (3072 kb). If 10 Gig or higher computer memory, on VM, enter memory size avoiding VM freeze/crash or slowing down of your host computer.
5. Dynamic Memory: Uncheck
6. Configure Networking: Not connected (do not enable) You can turn on after the virtual machine is created and Windows 10 automatic updates are disabled-stop.
7. Connect Virtual Hard Disk: Create a Virtual Hard Disk (For small size Images try 80 Gig HD size or as needed)
8. Install an Operating System from a bootable Image File: Browse to your OS media.
9. Finish

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           Additional configuration after VM creation and before Operating system Installation

1. Click to highlight the Virtual Machine’s name. Under the bottom right pane>Your “Virtual machine name”>Click settings> (New windows will open)
2. On the left upper pane-Hardware>
3. Security: Disable Secure Boot (uncheck)
4. Processors: 2 cores
5. On the left bottom pane-Management> click, Integrations Service> place a checkmark on Guest Services> Ok.
6. Follow the provided Power Pont presentation for additional configurations for How to make the host computer’s HD visible in your Hyper-V.
7. Install the operating system. Note: Once the Operating System is installed, immediately disable Windows 10 Automatic updates to avoid the OS update via the internet.
8. Install ImageAssist, capture and deploy for testing purposes. Note: Capture an image without adding additional applications and deploy to verify functionality and compatibility.

To avoid image corruption:

1. Do not remote control into the Hyper via other sources like a server connection, or desktop remote. Control the virtual machine It directly from the host computer
2. If Windows 10 was updated via automatic windows updates, or a windows upgrade mas made, SysPrep may fail or freeze the capturing process by packages or applications.
3. In the capturing process, make sure there is no local network connection. The VM needs to be isolated from external resources.