I do not know if it has improved but do a google search for ran hitman pro system will not boot
http://www.google.co.uk/search?hl=en&q=hitman+pro+killed+my+system+&meta=&rlz=#hl=en&pq=hitman%20pro%20killed%20my%20system%20&xhr=t&q=ran+hitman+pro+system+will+not+boot&cp=35&pf=p&sclient=psy&aq=f&aqi=&aql=&oq=ran+hitman+pro+system+will+not+boot&pbx=1&fp=1f55578b203ed600