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There you are cruising the information superhighway,collecting little nuggets of information,bookmarking sites,downloading programs and generally having a good time and “BAM” your hard drive crashes thus playing spoilsport and ruining your day and negating all the years of effort and destroying all your data?, well there is hope for you my friend by the time you finish reading this you will know how a hard drive works and how you can recover most of the data from your hard rive 90% of the time.A hard drive stores data on a magnetic medium. A steel plate called platter over which a thin coating of a cobalt-based alloy is sprayed, the data is stored in regions called sectors. Since the hard drive medium is magnetic in nature data corruption can occur when the hard drive is subjected to extreme temperatures or magnetic influences. A head is positioned above the magnetic platter much like the gramophone players of yore, while the gramophone head touches the gramophone record the head in a hard drive floats on a cushion of air a few nano meters above the platter. Data corruption can occur when the hard drive head touches or grazes the surface of the platter due to a physical shock or abnormal vibrations.Data corruption can also occur in case of a malicious piece of software like a virus or worm infects the computer.

Now that we have had a little background on how a hard drive works lets move to the most important item on our little article, what do I do in case of a hard drive crash or if I have deleted files by accident. The first thing to do is to switch off your computer right away, this might sound like an extreme step, let me explain why you should do so, in case the data corruption was due to a virus the virus could still be active and eating away at your computer, by switching off you are saving what is left. The next thing to do would be to decide if you would like to do the troubleshooting yourself or hire a professional to do it.If you want to get the data recovered professionally then you can stop here,Do a Google search look for a good data recovery company and get the job done.

To be continued….

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