Thank You Sir,
Windows XP-service pack-2 has been installed my PC. At the time of problem occurred in my PC Iam able to open only MSword, Excell, and Mp3 audio and Mp4 etc., for-mates only opened remaining game files etc., were opened in wordpad. Add-remove programme was not opened. No harmful virus was not detected in my PC after scanning. Lastly my system has been formatted due to urgency.
How this problem overcome? ie.,without formatting my computer in future if the problem faced again?
Thanking you Sir once agaian