An error occurred when Hyper-V tried to retrieve the list of virtual switches (operation failure: general failure)

Question

During the process of reusing Hyper-V, I received such a prompt (the Hyper-V virtual machine was shut down at this time):

I used virtual box before, but now it has been uninstalled

Attempted repair behavior:

1. Download and open the troubleshooter that can solve the problem (id:20159), from cannot-create-hyper-v-virtual-switch, but this troubleshooter does not apply to this version of windows.
2. Uninstalling the Microsoft network adapter multiplexer protocol failed with error code 0x80071779.

Answer 1

It's a bit late but in case anyone else ends here.

This could be something related to this: https://github.com/microsoft/WSL/issues/9888

To fix it:

• Run the PS1 script -> https://github.com/microsoft/WSL/issues/9888#issuecomment-1607589141
• In "add windows features" uncheck: hyper-v , virtual machine platform, windows hypervisor platform, windows subsystem for linux
• reboot
• In "add windows features" check: hyper-v , virtual machine platform, windows hypervisor platform, windows subsystem for linux
• reboot

Answer 2

Hello

Thank you for your question and reaching out. I can understand you are having issues related to Hyper-V

Try re-installing the network adapter didn't help. However executing the below command in a PowerShell console should fixt it:

New-VMSwitch VMSwitch -NetAdapterName Ethernet

Alternatively , Try to uninstall the network adapter from the device manager, and install it again.

In most cases, after that, Hyper-V can create the virtual switch.

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