Disable Data Execution Prevention (DEP)

Disable Data Execution Prevention (DEP)

Edit the BOOT.INI file in the root of the partition from which the computer boots.

• Right-click on My Computer and select Properties.
• Click on the Advanced tab.
• Click on the third button—settings for system start options.
• Click on the Edit button to edit the boot.ini file.
• Carefully edit the /NoExecute=OptIn string and change it to AlwaysOff. This part at the end of the line should now read: /NoExecute=AlwaysOff
• Save and close the dialog boxes by clicking on OK.

Alternative Method:

• ATTRIB -S -H -R C:\BOOT.INI
• NOTEPAD BOOT.INI
• Carefully edit the /NoExecute=OptIn string and change OptIn to AlwaysOff. This part at the end of the line should now read: /NoExecute=AlwaysOff
• Close the editor and resave the BOOT.INI file back to where it was.
• ATTRIB +S +H +R C:\BOOT.INI

To disable DEP by modifying the Boot.ini file, change the /noexecute policy level to alwaysoff.

/NoExecute=AlwaysOff