What is the Purpose of a Hard Drive Shredder?
For the same reason as you need a paper shredder to destroy any documents on a paper, a hard drive shredder is also needed to completely destroy or remove any documents in your hard drive easily. The main purpose is to completely destroy all the files as well as not to leave any trace of the shredded documents in the history or directory of your computer. Deleting a file in your computer does not mean that it is completely removed from your hard drive. A person having the right knowledge and expertise can easily find the location and recover the deleted file. But in some instance, a deleted file may also be removed from your hard drive if it has been written over with other files that will usually happen after a long period of time. However there are other methods which can still recover a deleted file if it is written over only once.
Essentially, overwriting a file is what a hard drive shredder does in order to remove it. In case where the files needed to be removed is very sensitive or confidential, you can also overwrite it several times. The same process of overwriting is again used in order to remove any trace to the directory after deleting it. But in case you want to shred a file that has been edited several times, it is highly advisable to shred the entire partition where the file is located. And to do the same, if the file you wanted to remove has been previously moved. If the purpose of removing the files is for security reason, then it is highly advisable that you shred the entire drive. In can be difficult to use a shredder if the drive containing the confidential information has been defragmented. Because once the partition containing the file is marked as a bad sector, it will not be any more visible to your computer. Studies found that most computers donated still contain personal information on the computer even after they have been deleted. A hard drive shredder can be useful in case you decided to dispose of your computer but have some sensitive or personal information stored in it. Especially if the company you belong will decide to make a computer upgrade and sell or donate the old ones. This is the case where a hard drive shredder is usually needed in order to protect confidential information. As mostly all of the information related to your work is stored on the computer you are using every day. Using a hard drive shredder would be much better to remove any files containing confidential information than to normally just delete it.