I had a PC that I had purchased 4 years back. In the last few months It was crashing too often I was clue less on how to fix it. Came across Amrutha computers that was at shanthi nagar, which was close to my residence. I gave a call to them and the service engineer paid a visit to our home the next day morning. After some 2 hours of trouble shooting he made some changes and installed few drivers, since them the number of crash i faced has reduced significantly.