I am having a problem with my pc that it often hangs(display blue or black screen) and shutsdown automatically and sometimes unexpectedly shutsdown automatically without hanging and when i try to on my pc it wont start unless when i switch off the main power plug and then switch on the plug and when i starts my pc it starts normally without any beep..displaying the same warning which all computers show after being unexpectedly shutdown due to loadshedding or power failiure and sometimes it shows another warning somelike that "windows failed to start a hardware or software changemay cause this problem insert windows cd or repair your computer"...and my harddisk is having 16kb badsectors so i dont know whether it is happening due to badsectors.And also my processor and Power supply fan is working properly.I am using Windows Vista Ultimate which is working properly without any error or virus or any sort of infection.My system configuration is:
Pentium-D 3.0 Ghz,Intel DG31 Processor board,1.5 Gb Ram,80 Gb Seagate Sata II,built-in graphic card and sound card.
Please Helppp..................
