During the holiday, I had some spare time so I defragmented my disk. It's been a month since the last time I did it, time really flies. Defragmenting once a month should be enough. Some people like to use specialized defragmentation software, but it seems unnecessary. The defragmentation software that comes with Windows is sufficient. Specific operations: Start — All Programs — Accessories — System Tools — Disk Defragmenter.
After using the hard drive for a period of time, due to repeated writing and deleting of files, the idle sectors on the disk will be scattered across non-continuous physical locations throughout the entire disk. This prevents files from being stored in continuous sectors. As a result, when reading or writing files, data needs to be fetched from different locations, increasing the back-and-forth movement of the read/write head and lowering the access speed of the disk.
This article originates from Discovery Blog http://www.find321.cn/, original address: http://www.find321.cn/post/64.html