Cannot change host system for WinDBG

Howard Weiss 1 Reputation point


I am running Qemu under Linux with a Windows 10 target. I have been using WindDBG on another computer to debug my device driver when Windows starts. To configure the connection, I used bcdedit and specified

bcdedit /dbgsettings net hostip: port:50010 key:

I then run WinDBG on another windows 10 system with IP4 It wait for my windows client to connect. When it does, I can debug the device driver.

I want to change the host computer to (I need to return to its owner)

I tried reconfiguring the target system using bcdedit as follows

bcdedit /dbgsettings net hostip: port:50010 key:

If I run bcdedit /dbgsettings it reports that the hostip is However, if run WinDBG on system with IP, the target does not connect. It continues to connect to

I discovered the following in the registry key 8HKLM\System\CurrentControlSet\Control\SystemStartOptions


Supposedly, this is irrelevant to how windows boots. Regardless, I tried changing the HOSTIP to without effect

Even odder, the Windows 10 target connects to the host REGARDLESS of whether I set debug to OFF or ON in bcdedit.

Is the boot information being retained somehow?

Please advise

Howard Weiss

Windows 10 Network
Windows 10 Network
Windows 10: A Microsoft operating system that runs on personal computers and tablets.Network: A group of devices that communicate either wirelessly or via a physical connection.
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