Windows Update removes Virtual Network adapter

When running a windows server from a template it can happen that when a Windows update is applied the network settings can break.

To solve this problem just do the following :

1. Create a VSB script with the following code :

Option Explicit
Const HKEY_LOCAL_MACHINE = &H80000002
Dim oReg : Set oReg = GetObject("winmgmts:{impersonationLevel=impersonate}!\\.\root\default:StdRegProv")
Dim oShell : Set oShell = CreateObject("WScript.Shell")
Dim sPath, aSub, sKey, aSubToo, sKeyToo, dwValue, Result, SaveResult
Dim NotDeleted

NotDeleted = 0

' Get all keys within sPath
sPath = "SYSTEM\CurrentControlSet\Enum\PCI"
oReg.EnumKey HKEY_LOCAL_MACHINE, sPath, aSub

' Loop through each key
For Each sKey In aSub
    ' Get all subkeys within the key 'sKey'
    oReg.EnumKey HKEY_LOCAL_MACHINE, sPath & "\" & sKey, aSubToo
    For Each sKeyToo In aSubToo
      Result = oReg.DeleteKey(HKEY_LOCAL_MACHINE, sPath & "\" & sKey & "\" & sKeyToo & "\" & "\Device Parameters" & "\SlotPersistentInfo")
      ' Allow failure only if key never existed
      If (Result = 1) Or (Result > 2) Then
        NotDeleted = 1
        SaveResult = Result
      End If
    Next
Next

If (NotDeleted > 0) Then
Wscript.Echo "One or more SlotPersistentInfo keys still exist under HKLM\System\CurrentControlSet\Enum\PCI\<deviceid>\<subdeviceid>\Device Parameters. Please delete manually. Result = " & Result
End If

Then run the script exmpl. : cscript C:\scripts\FixNetwork.vsb

2. Run the windowsupdate