Have you been annoyed that your computer is running slowly without any specific reason? If so, most people may choose to use anti-virus software or defragment the hard disk. For the latter method, if you still wonder why it is necessary to defragment disk, I am sure you can find perfect answer in this article.

After using your disk for a long time, because repeated write and delete files, the free sectors of the disk are scattered into discontinuous physical places to forbid restoring files continuously. So, if you read and write such files again, the disk head has to move back and forth frequently in different places and then reduce disk visiting speed. Excessive files are nothing but lower the computer performance, even shorten the usage of hard disk.

Like a room, your disk also needs to clean up regularly. Actually, defrag if to rewrite the files in the disk to keep files continuity. Only when you read and write the hard disk too often that can harm the disk, but defragmentation does not harm hard disk. I believe that most users may not defragment once a day and do not do that for a long time. So, if you defragment once or twice a week, you do not have to worry about the defragmentation does harm to the hard disk, instead, it can keep the read-write speed in a best state.

Here, I would like to explain how defragmenter works in rather plain way. Commonly, when running a program, the disk head of the drive has to search necessary files for this program first, read data and transfer data to disk high speed Cache and memory. If you put the relevant files of applications in the successive space, it will takes less time for disk head to search.

All in all, after learning such useful knowledge about defragmentation, I am sure you will agree that defragmenting disk is helpful in speeding up computer speed. You can get more information by clicking here.