Network adapter load balance Teaming has been deprecated Windows for some time.
In its place you should use a Switch Embedded Teaming (SET) which is virtualization aware.
To create a SET switch by combining two network adapters, note the names of the current adapters in Windows. In this example they are called NIC1 and NIC2, and I am calling the SET switch vEthernet. From an elevated powershell prompt run the command:
New-VMSwitch -Name vEthernet -NetAdapterName “NIC1″,”NIC2”
A new network adapter “vEtherenet” will then appear in Windows which can be used in HyperV
You can also read more details here