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Add experimental VM networking opt-in for Hyper-V builds

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The Hyper-V switch selection in the UI previously did not connect the build VM to the network during provisioning. Since internet-connected Sysprep and capture flows are still experimental, this introduces an explicit "Enable VM Networking" checkbox to the Hyper-V Settings page that defaults to off.

- Adds the `-EnableVMNetworking` parameter to BuildFFUVM.ps1 to conditionally attach the Hyper-V network adapter during VM creation.
- Persists the setting through FFU config files and blocks UI execution if enabled without a valid switch.
- Refactors WPF event handlers in FFUUI.Core to fix dropdown scoping errors.
- Updates documentation and the sample configuration file to reflect the new behavior.
This commit is contained in:
rbalsleyMSFT
2026-03-30 16:37:53 -07:00
parent f838ef3779
commit 78212f06d7
11 changed files with 128 additions and 27 deletions
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docs/hyperv_settings.md
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@@ -11,11 +11,17 @@ parent: UI Overview
![1759533067934](image/ui_overview/1759533067934.png)
## Enable VM Networking (Experimental)
Controls whether the build VM is connected to a Hyper-V switch during provisioning.
Leave this off for the default offline build path. Turn it on only if you want to test internet-connected builds and understand there may be Sysprep or capture issues.
## VM Switch Name
Drop down of detected VM Switches. There's also an **Other** option which allows you to specify a VM Switch Name. The other option is useful in scenarios where the machine you're running the UI from isn't going to be the machine where you plan to build the FFU from.
This setting is now optional for FFU capture itself. VM-based builds still capture from the host-side VHDX after the VM shuts down, so you only need a switch when the VM requires network connectivity during provisioning.
This setting is only used when **Enable VM Networking (Experimental)** is turned on. VM-based builds still capture from the host-side VHDX after the VM shuts down, so you only need a switch when the VM requires network connectivity during provisioning.
## Disk Size (GB)