frequent formatting!

[akif]

I have heard that the more you format your Hard Disk, the sooner you will have it worn out. So one should use deltree instead of formatting a disk.
To how extent it is true?

[Budfred]

It is generally true that the more you use your hard drive, the sooner it wears out. However, if you have a newer drive, the typical MBTF (mean time between failures) has gotten to be quite good so that most drives are likely to be obsolete before they will wear out. There are also some advantages to starting with a clean install that comes from a reformatted drive that may make your system run more efficiently.

If you are just doing some basic maintenance, using DELTREE or simply cleaning thing up in Windoze and doing a defrag may be sufficient.