Posted 11 July 2007 - 08:50 AM
As mentioned above the XP defragger is indeed a highly 'litened' diskeeper engine. I was under the impression that the Vista defragger was licensed from DK too, but after reading a few forums, I am not really sure anymore. Apparently MS wrote the defragger themselves, but don't quote me on that.
The full paid version of diskeeper, (DK Pro 2k7) does defrag faster than windows does, and also gives you more options - boot time and $MFT defrag. But the biggest difference IMO is the auto-defrag mode of the paid version. It really is excellent- set it and just leave it alone. It works only when it has idle cycles so your programs are not affected, and assuming you dont use your PC 100% of the time it is on, it will automatically defrag in the background whenever it gets a chance.
AFAIK, there are couple of other defraggers that offer autodefrag modes (infact even Vista has one IIRC), but none are as effective as the DK one, from what I've heard.
Reg the long time for defrags-thats because your files are heavily fragmented. Once you defrag it properly, subsequent defrags should take less time, assuming file fragmentation is not too heavy in the meantime, and you defrag about once a week.