getting remote registry key - null reference HELP

im trying to open a key so i can delete its subkeys

Code:

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        Dim asu As New System.Security.Principal.NTAccount(username.Text)
                    Dim si As System.Security.Principal.SecurityIdentifier = asu.Translate(GetType(System.Security.Principal.SecurityIdentifier))

                    Dim MyReg As Microsoft.Win32.RegistryKey
                    MyReg = Microsoft.Win32.RegistryKey.OpenRemoteBaseKey(Microsoft.Win32.RegistryHive.LocalMachine, host.Text) _
                        .OpenSubKey("Software\Microsoft\Windows NT\currentVersion\ProfileList\" & si.ToString & "\")
                    Dim myval As String
                    myval = MyReg.GetValue("Guid")
                    MsgBox(myval.ToString) ' retuns GUID no errors
                    Dim guid As String
                    guid = myval
                    Dim MyReg2 As Microsoft.Win32.RegistryKey
                    MyReg2 = Microsoft.Win32.RegistryKey.OpenRemoteBaseKey(Microsoft.Win32.RegistryHive.LocalMachine, host.Text) _
                        .OpenSubKey("SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileGuid\")


                    MsgBox(MyReg2.ToString)
                    'myreg2.DeleteSubKey(guid)

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now i have tesedt other keys on the same level

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileNotification

they all return values but trying to open ProfileGuid returns a Null reference - i have full access to the registry and have tested locally same results

i know the key exists is they any way i can delete it directly without opening subkeys? or can anyone help why it is returning null?

ive also tried looping through the top level HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\

Code:

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Dim SubKeyNames() As String = MyReg2.GetSubKeyNames() For Each s As String In SubKeyNames MsgBox(s.ToString) Next

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i have also given "everyone" full access to the key still returning nothing –