Downloaded MemTest and when I right click on the .iso to burn to disc the option is not in the menu. I downloaded it on another Win10 machine with the same results, right click on the .iso does not have an option to burn to disc. Another .iso file in my downloads (Decrypt) has the burn to disc option on right click. Both files are .iso and show as disc image. Any idea why the memtest .iso does not have a burn to disc option? It's downloaded on two different computers so that pretty much eliminates a computer problem and another .iso file will burn to disc on both machines.