LazyNetAdmin | Homelabbing, Azure, And Tech

MDT Error 0xc0000001

In the midst of attempting to deploy out a new Windows Server 2019 installation I came across a new issue. As mentioned in the title of this quick block. My remote virtual machine posted the error 0xc0000001 which was odd since I was able to PXE call from my onsite domain controller (DC02) and start to load the boot file config.

After some research and a few cups of coffee I found that the resolution to this issue was the Enable Variable Windows Extension. To fix this follow the instructions below…
1. Open your Windows Deployment Services app or WDS
2. Right click on your WDS server in the left pane
3. Left click on Properties
4. Click on the TFTP tab within the properties window
5. Uncheck Enable Variable Windows Extension
6. Lastly Reboot your WDS Server

If you followed all the steps above correctly you should be able to PXE boot your VM from MDT now. Enjoy!


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