Sample config to create Hyper-V VM

config.ps1

#global variable
$global:ctx = @{
    VmName    = "Windows 8.1"
    Operation = ""
    Session = $null

    ComputerName = "TestPC"
    DomainJoin =@{
        Name = "TEST.local"
        Credential = Get-SavedCredential -Id DomainAdmin
    }
    NetworkShare = @{
        Path  = "\\172.16.0.1\Shared"
        Credential = Get-SavedCredential -Id FileShare
    }
    ImagePath= @{
        DotNet35           = "\\172.16.0.1\Shared\Images\Windows8.1\WinSxS"
        VisualStudio       = "\\172.16.0.1\Shared\Images\VisualStudio2012"
        VisualStudioUpdate = "\\172.16.0.1\Shared\Images\VS2012_Update3"
        ManagementStudio   = "\\172.16.0.1\Shared\Images\SQLServer2012_SP1"
    }
}

$vmTemplates = @{
    VmName = $ctx.VmName
    VmLocation = (Get-VMHost).VirtualMachinePath
    CpuConfig = @{
        Count = 4
        #EnableCompatibility = $false
    }
    SystemDiskConfig = @{
        ParentPath = Join-Path (Get-VMHost).VirtualHardDiskPath "Windows8.1_Enterprise.vhdx" -Resolve
        Differencing = $true
        SizeBytes = 128GB
        BlockSizeBytes = 2MB
    }
    DataDiskConfig = [ordered] @{
        DriveD = @{
            SizeBytes = 128GB
            BlockSizeBytes = 256MB
            LogicalSectorSizeBytes = 4KB
            PhysicalSectorSizeBytes = 4KB
            Dynamic = $true
        }
        DriveE = @{
            SizeBytes = 128GB
            BlockSizeBytes = 256MB
            LogicalSectorSizeBytes = 4KB
            PhysicalSectorSizeBytes = 4KB
            Dynamic = $true
        }
    }
    MemoryConfig = @{
        StartupBytes = 4GB
        DynamicMemoryEnabled = $true
        MaximumBytes = 8GB
        MinimumBytes = 2GB
    }
    NetworkConfig = [ordered] @{
        Lan1 = @{ SwitchName = "内部LAN" }
    }
    StartupActionConfig = @{
        AutomaticStartAction = "StartIfRunning"
        AutomaticStartDelay = 30
        AutomaticStopAction = "ShutDown"
    }
    OtherConfig = @{
        VmGeneration = 2 #Gen2 VM Require Windows8.1/2012 R2 Hyper-V
        DisableTimeSync = $true
        EnableGuestService = $true #Require Windows8.1/2012 R2 Hyper-V
        EnableResourceMetering = $true
        EnableDvdDrive = $true  #Gen2 VM contains no DVD drive by default
        SuppressPxeBoot = $true #Gen2 VM primary boot order is PXE boot.and take times to startup first boot.
    }
}

This looks much tidier than my previous attempts, chance of sharing the code which would use this powershell config to build the virtual machine ?