When you attempt to run CMD.exe or a batch file, you may receive the message "The command prompt has been disabled by your administrator". This is caused by restrictions placed in Registry. DisableCMDvalue is set to 1 or via Group Policy. To enable Task Manager, try any of these methods:
Method 1: Using the console registry tool
- Click Start, Run and type this command exactly as given below: (better - Copy and paste)
Method 2: Edit the registry directly
- Open Registry Editor (Regedit.exe) and navigate to:
[HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\System]
- In the right-pane, double-click DisableCMD and set it's data to 0
Method 3: Using Group Policy Editor in Windows XP Professional.
- Click Start, Run, type gpedit.msc and click OK.
- Navigate to User Configuration \ Administrative Templates \ System
- Double-click the Prevent access to the command prompt
