Does defragging corrupt files?

[Guest2]

I have hjad diskeeper running on my pc for a few years now. Recently i have noticed quite a few images show no preview and come up as corrupt when you try and open them. Also a few of my disk images of games are not installing correctly and come up with a corrupt message when installing

Should I stop using diskeeper and run manual defrags instad of having automatic defragmentation on all the time?

 

[Guest2]

thanks. Temi - Ive downloaded a trial of perfect disk. Does it automatically run when i start windows? I see 3 services (PDAgent, PDAgentS1 and PDEngine) running does this mean auto defrag will be on all the time, even when i close the program from system tray? At the moment it says idle in the system tray but when you right click and exit, does it also stop background defrag?

The 3 services do stay open when its closed