(you want the 2nd one Download - Pre-Compiled Bootable ISO (.zip)
). Unzip it then create a CD from the iso file using your CD burning software. There is a good freeware burner called ImgBurn
which will do this easily.
burn the .iso file directly to CD. It must be used as input to a program that knows what to do with it, like the one I mentioned above.
You can do this on any computer that has a working CD Burner.
You can also use a Flash drive instead of a CD.
Download - Auto-installer for USB Key (Win 9x/2k/xp/7) *NEW!*
Unzip and run Memtest86+ USB Installer.exe
It will format the flash drive if you tell it to. I used a small, 16MB flash drive and it had 8.5GB left when done.
Boot the CD or Flash drive and run Memtest86+ for at least 3 complete passes unless it shows errors sooner than that. An overnight run is even better.