Data Execution Prevention (DEP) is a security feature that helps prevent damage to your computer from viruses, trojans, or ...

Data Execution Prevention (DEP) is a security feature that helps prevent damage to your computer from viruses, trojans, or other security threats. These harmful programs attack your computer by trying to run, also known as execute, code from system memory locations reserved for Office applications and other authorized programs. These kinds of attacks can harm your programs, files, or network.