mery Laptop mien virus agya hova hai , bohat slow hogya hai .window 7 install hai usmien . to mien ab window 7 kar rai the jub he vo kata na k please press any key to boot from cd to key press karny k bad kuch time screen black rahti usky bad blue screen vali error a jati ...so pls koi meri yeh problem solve kar do ..pls pls