How to fix a PC when it freezes up?

Is your PC re-booting itself after it begins to load? Or maybe it locks up (hangs up) making its all accessories like mouse, keyboards unresponsive and applications hang. Sometimes, you may even get a Blue screen spontaneously, while working making you to restart it manually which again lands you in the same screen. All these are the signs of indicating that your PC is freezing up. It is of extreme annoying situation when your PC freezes at the mid of your important work.  If your computer freezes regularly, then it is advisable to fix it at the earliest before it…