Most people tend to accept a false theory that frequent disk formatting will decrease the longevity of hard drive. Formatting is not the cause of HDD failure. The slider (read/write head) does not touch the platters in the formatting process. Thus there's no chance of physical damage on the HDD during formatting.

Is formatting your computer good?

Formatting the hard drive or the computer is the only way to get it working. Formatting the system removes all the files and errors and restores the computer to a blank state. It is almost always followed by installation of the operating system which means that the user would be able to use a fresh system.

Can reformatting damage a hard drive?

Despite frequent formatting not harming hard drive, so as not to suffer data loss, you should make an updated data backup for the entire drive. With it, after a disk formatting, you can easily restore data from the backup.