hello i have a major problem that just occured today my PC hasnt really been acting slow or anything lately, and the only known issues ive been having is my vidcard and fan. Yet earlier today i got a blue screen of death, and now cant boot my system. At first i got a boot disk error even tho i changed nothing on the inside, and now i cant past the windows loading screen without a automatic reboot. Safemode doesnt work either, while loading i get a "press esc to abort loading SPTD.sys" but whether i do or not doesnt change the fact that it reboots. My feelings is a virus, but i cant run any anti-virus software without windows. Help?