Function Test-Cluster {
     $count = 1
     $script:ComputerName = "webscale-app-v$count"
     While (Test-Connection $script:ComputerName -Quiet -Count 2)
     {
     "Testing Connection with $ComputerName"
     $local:count = $count += 1
     $script:ComputerName = "webscale-app-v$local:count"
     }
}
Test-Cluster

Remove-ItemProperty -path "HKLM:\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters" -name "Hostname"
Remove-ItemProperty -path "HKLM:\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters" -name "NV Hostname"

New-PSDrive -name HKU -PSProvider "Registry" -Root "HKEY_USERS"

Set-ItemProperty -path "HKLM:\SYSTEM\CurrentControlSet\Control\Computername\Computername" -name "Computername" -value $ComputerName
Set-ItemProperty -path "HKLM:\SYSTEM\CurrentControlSet\Control\Computername\ActiveComputername" -name "Computername" -value $ComputerName
Set-ItemProperty -path "HKLM:\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters" -name "Hostname" -value $ComputerName
Set-ItemProperty -path "HKLM:\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters" -name "NV Hostname" -value  $ComputerName
Set-ItemProperty -path "HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" -name "AltDefaultDomainName" -value $ComputerName
Set-ItemProperty -path "HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" -name "DefaultDomainName" -value $ComputerName
#Set-ItemProperty -path "HKU:\.Default\Software\Microsoft\Windows Media\WMSDK\General" -name "Computername" -value $ComputerName