Memtest86 and Memtest86+ are open source memory test software programs designed to test and stress test an x86 architecture computer's random access memory (RAM) for errors. Each tries to verify that the RAM will accept and correctly retain arbitrary patterns of data written to it, and that there are no errors where different bits of memory interact, and there are no conflicts between memory addresses.
To install into memory stick is quite simple and straightforward. You need a USB pendrive / memory stick that are empty and formatted. This tools does helped me when my desktop frequently goes into BSOD. I used the tool and figured out that my RAM module have problems.
Go to
HERE and download the
Auto-installer for USB Key (Win 9x/2k/xp/7). Run the installer and follow the given steps.
To boot into Memtest tools, be sure to boot from your USB pendrive.