text: what is f parameter? when i run chkdsk it says:  warning f paremeter not specified.  what does that mean and how do i fix it, or correct it?  i have windows xp home edition 2002 with sp1, if that helps. boy...that's going back aways....  the f parameter is just a command line flag to tell chkdsk to attempt to fix any known corrupted sections of the hard drive.  i'm unsure whether you can even use it under windows xp, but if you can, it would be:  chkdsk /f  good luck! :-)