What are the side effects of computer formatting?

Formatting is an operation that initializes a partition (partition) on a disk or disk, which typically causes all files in an existing disk or partition to be purged. Formatting is usually divided into low-level formatting and advanced formatting. If it is not specifically indicated, the format of the hard disk usually refers to advanced formatting, while the format of the floppy disk usually includes both.

Advanced format, advanced format is to clear the data on the hard disk, generate boot area information, initialize FAT table, callout logic bad way. In general, when we reload the system are advanced format, because the MBR does not rewrite, so there is the possibility of a virus. MBR virus can be cleaned by antivirus software or executed under DOS FDISK/MBR rewrite the MBR to completely remove the virus.

Low-level format, low-level format is the physical level of the format, mainly used to partition the hard disk of the magnetic cylinder, the establishment of sector number and select sector interval ratio. Hard drive to the low-level format before the advanced format, and just factory hard drive has been a low-level format, no need for users to lower the low-level format. In general, only in the most necessary circumstances, users need to do low-level formatting.

Note: Low-level format is a lossy operation, it has a certain negative impact on the hard disk life. And the advanced format is not.