Protect yourself by taking precautions against the new Petya variant virus. Download the file to the right (or at the bottom of the page if you are on mobile) and run it on the computer to be vaccinated. It is a .bat file developed by Security Researcher Lawrence Abrams, that opens a DOS prompt and runs a command to create two read-only files in your C:/WINDOWS directory, perfc.dat and perfc.dll. It will ask for administrative rights to proceed, which you have to grant. This is NOT A CURE OR A GUARANTEE OF AVOIDING THE VIRUS. It is only a way to decrease the damage. Make sure to also update your antivirus and Windows operating system.