There are some situations that do not allow data recovery to be effective, even after taking it to data recovery specialists. In these cases, it means that the hard drive is extensively damaged due to various reasons. Some of the reasons why the data will be unrecoverable are stated and discussed below:
The most common one (I believe) has to be ignorance. Many computer users are never aware when their hard drive is crashing. They could be experiencing signs of computer crash but they don’t know. Some of the things they do are continuing to save data, backing up and even installing software as the hard disk is failing. As you do this what happens is that overwriting may occur on the hard drive and data may be lost permanently. A hard disk that is failing is in a corrupt state. This means that it can allocate any sector to data that will be saved or software that will be installed. In this corrupt state, if you happen to save more data and install software on the crashing hard disk, then it will allocate the space to a file that has already exists, overwriting takes place and the data that was previously there will be lost permanently.
As human beings, we like to try and fix problems on our own before getting an expert does it. I guess it is human nature. Most of the time, when we hear certain noises coming from the hard disk drive, we remove it and begin giving it a good tapping. We usually assume by doing this the hard drive would become better. That’s very wrong! The internal components of the hard drive are very sensitive. By giving it a good tapping, you may cause the head to crash or even to get stuck between plates. This means reconstruction has to be done and it will cost you more. If the head touches the platter, your data could be lost.
Another way we can make data unrecoverable is by taking it to normal IT repair men to recover the data. What happens is that they tamper more with the hard disk and when unable to recover the data, they tell you it’s not possible and that the hard drive was greatly damaged. It is important to note that not all IT technicians are data recovery experts. So when you finally take it to the experts, they confirm what the technicians had said because it had been mishandled.
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