googling NonEnum {20D04FE0-3AEA-1069-A2D8-08002B30309D}

this policy makes the checkbox grey out

Not an answer to you post - but

erm . . .

you might want to remove your product key in the winnt.sif

Google: http://www.google.nl/search?q=cache:NKGPwd...02B30309D&hl=nl

Want to use Windows 2000 or Windows XP as a kiosk and you want to remove My Computer from the Desktop and Start Menu? Set {20D04FE0-3AEA-1069-A2D8-08002B30309D} = 1 in HKCU and HKLM :

Hive: HKEY_CURRENT_USER

Key: Software\Microsoft\Windows\CurrentVersion\Policies\NonEnum

Name: {20D04FE0-3AEA-1069-A2D8-08002B30309D}

Type: REG_DWORD

Value: 1 remove

Hive: HKEY_LOCAL_MACHINE

Key: Software\Microsoft\Windows\CurrentVersion\Policies\NonEnum

Name: {20D04FE0-3AEA-1069-A2D8-08002B30309D}

Type: REG_DWORD

Value: 1 remove

I bet you have to remove this rule from your regtweak thing:[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\NonEnum]

"{20D04FE0-3AEA-1069-A2D8-08002B30309D}"=dword:00000001