4745454b :
As its been said to me before, the first partition is on the outer edge. It works from the outside in. As you fill up the drive, it will move to the slower inner tracks. This means you are using the outer edge already.
Over the last 6 months I've tried Auslogics, Smart Defrag and Perfect Disk v11. These show most files at the top (which I guess represents the faster outer tracks) and some in the middle, including the Page File, which I expect should be in the faster outer tracks. They also put less-used files in the middle, but I'd guess that could wait until more than 30% of a drive is used (mine are well under 10% used).
If I'm reading HD Tune's display correctly the first 30 to 35% of my drives' capacities are the fastest, then speed drops off more and more, so I'd rather avoid using those areas until necessary (maybe never since bigger drives are cheap and maybe SSDs will take over).
Apparently Ultimate Defrag has options to place files but has no Win7 x64 version yet. Is anyone aware of other defrags that can defrag and place files only in the fast areas?