Defrag, restart and then refrag again?

I use defraggler and it shows no files fragmented when it's finished. I restart the PC and I have like a 100 files fragmented? Is this software a hoax or is this a Windows issue. I have 32 bit Windows 7. Anybody????

I use defraggler and it shows no files fragmented when it's finished. I restart the PC and I have like a 100 files fragmented? Is this software a hoax or is this a Windows issue. I have 32 bit Windows 7. Anybody????

What do you think happens when a computer starts up? Yes, files get written! All over the hard disk. So some will inevitably be fragmented. That's the way it works...