Toshiba website don't have windows 8 drivers,,,, that means it does not support windows 8 offically...
so if you have luck it will work with you h/w or else look for modified drivers by any third party on some one else with great system knowledge..its risky & may have virus or do some thing bad..
try this website((( (on your own risk, its open source software.Distributed for FREE Under the GNU GPL license))))))
http
/drp.su/