mslab vNext - Support vNEXT Windows Server

[Karl-WE]

Issue repro:

• Install Windows Server vNext on baremetal
• Add "Hyper-V" and reboot
• Terminal (Admin)
• winget install microsoft.Powershell (7.6.2)
• close and repopen
• Terminal (Admin)
• run 1_Prereq.ps1
• run 2_CreateParentDisks.ps1. Choose en-us_Windows_InsiderPreview_Server_vNext_en-us_29595.iso

Results:

• the Domain controller behaviour is the same

mslabver.txt
Prereq.log

CreateParentDisks.log

[Karl-WE]

the issue also existed in b29574. said issue depends on the Host OS, not primarily the guest OS.
WS 2025 host and vNext guest is ok.