Defragmentation make me lose space on my disk.

[Guest]

Hey, im new here hope you can help me im really lost and my problem is pretty
big.

So here it is,

Each time I do a defragmentation with the Windows Vista application, I lose
3Go !!! Thats not normal.

I've tryed with another program and it works pretty well, but I can't regain
the space I lost.

My computer is a Laptop, it is brand new.

Dell Inspiron 6400
120Go hard disk
2Go Ram
Dual core 1.73 Ghz
Nvidia GeForce 7300

HELP!

Thanks.

 

[Guest]

this is happening to me too on my new sony vaio. I only lost 1 gig but
what's up with that anyone have an answer?

 

[Guest]

i also have the same problem i also have a brand new dell e1505 and i lost 9
gigs of space. I did pc restore and i got my memory back ill probably use
third party applications to do my defragging. Does anyone know why windows
vista is doing this?????