1. operating system
2. startup devices
3. hard disk..
operating system huenda kuna driver zina miss jaribu kuweka upya os
startup devices haijasetiwa ipasavyo hapa nazungumzia manual configuration ya IDE cable na JUMPER za hard disk na cd rom
hard disk ina matatizo inawezekana ina virus au imefika mwisho wake....
ila mkuu hyo ni laptop au desktop??? fafanua nikupe msaada kamili.. mana pc ni personal computer inaweza ikawa ni lap au desk