IMHO, yes, why not. I think the only problem you have is that you do not have directly access to (almost) everything like an administrator in a domain. You will always have to provide local administrator credentials per computer. Maybe you can first try what I said and see if it suites you. Good luck.
Code:
Break on
Shell '%COMSPEC% /c net Use \\ComputerName Password /user:ComputerName\AdminAccount > NUL'
$Index = -1
Do
$Index = $Index + 1
$Keyname = EnumKey("\\ComputerName\HKEY_LOCAL_MACHINE",$Index)
If $KeyName
? "-" + ($Index + 1) +": " + $Keyname
EndIf
Until NOT $Keyname
Shell '%COMSPEC% /c net Use \\ComputerName /d > NUL'
