Finding out what block is bad unfortunately will not solve the problem of loss data. However, you don't need professionals to retain some of your loss data. Here's how it works….

When data is aparently lost, it's not always completely lost. Although it may appear to Windows that way, there's still 1s and 0s that contain data. Just that it's not viewable via the Master Boot Record. This is how a computer deletes things but the data is still on the harddrive until it's formatted or over written. What data recovery does is search for 1s and 0s on your hard drive and collects the data that way. Although some of the data itself may not formulate anything of use such as a full picture or a document that's readable.

But there is software that will do data recovery that's relatively easy to use. Not one application will work the best so it's better to use multiple applications to recover data. Unfortunately much of the software will cost you money but you'll save more doing it yourself than paying for a professional's time to do it for you.

Much luck to you because usually the best way to rid yourself of bad blocks that make the harddrive lose data is to reformat it. Unfortunately reformatting takes all 1s and makes them 0s so you really do lose all of your data. At that point, it's nearly impossible to recover anything then.
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