Found the Following Question on many internet forums in many different words. I have evolved to a systematic approach towards finding resolution to this problem and following is a humble attempt for other computer users who might as well need it someday..
Computer User says –
“Some times when i am working on the computer it will either reset randomly or shut down why is this ?
This usually occurs when i am on the computer talking to people, running a scan, or even on the internet. I resently got the computer made and i had this problem before to … is there anything that i can do to resolve this problem ?”
The technician me –
“Your problem needs closer inspection, and depending on situation may need one or multiple options mentioned herein. This is a kinda brute force method for troubleshooting assembled pc and/or laptop hardware problem.
Solution 1 –
Removal of any Virus or Worm or Trojan through a tool like NoAdware. The problem description shows signs of W32 Worm. Download small tool like Stinger Mcafee for scanning and cleaning this and its variants
Solution 2 –
Resetting the BIOS of PC or Laptop to default or safe state.
This will ensure resetting to a safer processor speed and stable memory timings too.
(Warning!-Tampering BIOS settings without proper knowledge may have unpredictable results, and permanent processor or memory damages in the shortest time or longer runs of the computing hardware)
Keep pressing Del or Shift F10 or F12 to enter BIOS input screen within 3-8 secs after you press power switch of your computer. Sometimes due to longer memory test it may take time so have patience too. Once you get to the BIOS screen you may or maynot be asked for entering a master supervisor passord, which you may or maynot know. You will need to figure out where the individual setting for Load Defaults (different BIOSes have different wordings order so try to tally with your logic) is either in the main menu or some submenu of the BIOS. Once you do the same depending on the BIOS model the BIOS interface will prompt you for only save setting comfirmation or save and restarting the Default setting.
Solution 3 –
This includes professional checkup from a PC or Laptop Hardware personel. Check list would ideally be in the following order
a) The power cord if faulty or the laptop battery, the SMPS for irregular voltages can be serviced or replaced if found faulty.
b) The Memory, the Processor Fan speed and the processor itself, the Mainboard also if needed.”
Hopefully this is the ideal solution for the layman…