Use the tool from the download page to check if the md5 sum is correct and re-download if it isn\'t.
If it is, then you got a problem somewhere. Maybe it\'s the installer, but I doubt it\'ll crash at this early stage. However, you might still want to download one of the older versions just in case.
Additionally, you should make sure that your computers hard- and software is OK (no overheating, bad RAM, overclocking, leaking / bulging capacitors, etc., and that no viruses and other crap are there).
Furthermore, make sure that you don\'t run anything unnecessary during the install, and also make sure that you have plenty of RAM and swap available just in case. And of course do a clean reboot before trying this.