- Launch <Hyper-V Manager>.
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<Right Button> on the Virtual Machine you want to test with and select <Settings>:
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Select <Add Hardware>, select <Legacy Network Adapter> and click <Add>:
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In the ‘Legacy Network Adapter’ properties, select the ‘Virtual Switch’ you want to connect to and enable ‘VLAN Identification’ if required, then Select the <BIOS> Node:
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Move the ‘Legacy Network Adapter’ to the top of the ‘Startup Order’ list and click <OK>:
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The Virtual Machine should now being booting into Windows PE: