Disable DEP in Vista:
- Click Start
- Click All Programs
- Click Accessories
- Right Click on Command Prompt
- Left click on Run as Administrator
- Click the Allow button if it asks you for permission
- Type or copy and paste this into the command prompt window:
bcdedit.exe /set {current} nx AlwaysOff - Hit enter and you should see the confirmation: Operation Completed Successfully
- Reboot and DEP should be off