Question/Issue:

1. Start Ghost Explorer
   [Start] > [All Programs] > [Symantec Ghost] > [Ghost Explorer] 
    

2. Open the Ghost image file that need to check registry.
   [File]  > [Open]
   
   

3. In the left pane expand "Windows\System32\config". 
    

4. In the right pane, right click on the "Software" hive file .     
    

5. Extract the hive file to any folders (e.g "c:\").      
    

6. Start Command Prompt.
   [Start] > [All Programs] > [Accessories] > [Command Prompt]
   
   

7. On the command prompt, type following command to load the "Software" hive file.
   reg load HKLM\tmp_software c:\Software      
    

8. Type following command to query "disabledcad"
   
   C:\>reg query HKLM\tmp_software\Microsoft\Windows\CurrentVersion\Policies\System /v disablecad
   
   REG.EXE VERSION 3.0
   HKEY_LOCAL_MACHINE\tmp_software\Microsoft\Windows\CurrentVersion\Policies\System
             disablecad   REG_DWORD       0x0 
    

9. On the command prompt, type following command to unload the "Software" hive file.
   
   reg unload HKLM\tmp_software