Solutions on disabling VDD when you cannot see the screen

[jayfunc]

Hello all, I wanna share my experience with you guys.

Background

Mini PC, no physical monitor, streaming via Sunshine, have VDD installed and enabled, has Windows Firewall disabled.

Problem

Yesterday, when I was enabling Windows Firewall, I immediately lost connection to my PC I then realized that the Firewall had rejected the connection. I tried connecting my PC via HDMI cable, but I only got a black screen. I tried rebooting many times and connecting repeatedly, but nothing happened.

Then, all of a sudden, I came up with the idea that I could edit the configuration file on another machine to disable VDD. I removed the SSD and connected it to my laptop as an external USB storage. I then started chatting with ChatGPT on how to disable VDD. Here are the steps:

Steps on how to disable VDD via the registry.

1. Open the registry editor (Windows + R, regedit)
2. Navigate to HKEY_LOCAL_MACHINE
3. Go to menu, click Files -> Load Configuration Unit
4. Select the target file X:\Windows\System32\config\SYSTEM (In my case, X is D)
5. Give it a name
6. Navigate to HKEY_LOCAL_MACHINE\[your_custom_name]\ControlSet001\Enum\Root\0000
7. Change the value of ConfigFlags to 1 (0x00000001)
8. Select [your_custom_name]
9. Go to menu, click Files -> Uninstall Configuration Unit
10. Close it

Now you can access your PC via an HDMI cable.