Should you defragment your hard drive? With Windows 7, that question is becoming increasingly irrelevant these days. Disk defragmentation is automatically scheduled in Windows 7 on those drives that need it. With newer solid state disks (SSDs), defragmentation is not recommended at all, since files are stored differently on SSDs than they are on traditional disks.
Windows 7 is smart enough to recognise SSDs and will turn off defragmentation by default.