Hello, I am following the front page thread for sudden reboots! Gateway GT4016 OS - Windows XP sp2 I cant seem to run memtest86. v-2.01 Bootable cd iso I think, I put it in my Mothers pc and it does nothing, clicking the icons do nothing either. I also downloaded memtest86 v-3.4? in a zipped file and when I open it and click install a black window(command window?) flashes then nothing happens. also what is WinRAR and how do you know if you have it?...lol, could that be the problem? ps. I am new to all of this, so please bare with me.