hey guys, i am trying to format my computer because i want it to start out fresh and i have my stuff backed up. and when i click format on my computer it said "windows was unable to complete format" whats the problem? and i put NTFS for file system, and allocation unit size 4096, format options, i checked "quick format" and "enable compression". and it is local (c:. i have a picture. and my computer is a desktop HP Pavillion a620n.