I am still asked by people running Windows Vista and Windows 7 whether they have to manually defragment their hard drive.
Disk defragmentation is the process of consolidating fragmented files on your computer’s hard disk.
For further explanation on disk defragmentation please read the attached link.
The short answer is NO if you are using Windows 7 and Windows Vista and YES if you are using Windows XP.
In Windows 7 and Windows Vista this happens automatically but you can schedule this to run at other times
Windows XP however needs to be done from my experience about 6 times a year for an average user.
So how do you get to Disk Defragmenter?
Open Start , go to Computer.
You will then see your hard drives.
Right click on your C Drive and go to properties
Open up the tools tab and you will see Disk Defragmentation