Hi I mounted the .wim file. loaded the registry hive from mount\windows\system32\config\SOFTWARE hive to hklm\SOFTWARE_FROM_PE. But I am unable to change 1 classes to classes.old 2 microsoft\internet explorer to internetexplorer.old 3 microsfot\windows\cv\explorer to explorer.old using regedit. it says unable to rename. How do I make changes? Is there any problem? Thanks in advance.