Just wondering.For example, if I had a 30GB hard drive and FS9 takes up 25GB (83%) would that give me "worse" performance than a hard drive of 100Gb (FS9 taking up 25%).Victor

In theory, yes. The practice might be different as there are other factors to consider - is the drive defragmented, is the FS installation the sole occupant or is it sharing space with other applications, does FS share the hard drive with the Page File? that kind of thing.I think that I would prefer to have FS on a separate disk by itself, even if the hard drive was small, than have it sharing space with anything else on a hard drive that was big. But if the applications FS was sharing with were not in use at the same time as FS was running, that shouldn't make a difference.What I have is FS on a separate hard drive, but sharing space with other programs that never run while FS is running. Other games, and system utilities that are not auto-started with Windows. It's not the ideal solution, but it works for me as I keep a complete hard drive free for my music. But I have my addon scenery remotely located on another, separate hard drive. Neither shares a partition with the OS or the page file.Allcott

Ok, so assuming everything else is equal (same OS,programs,partitions, page file location etc) the HD with FS9 as a smaller volume of its total space would produce better -if only slightly- results than the HD in which FS9 took up a greater volume of its total space.Victor

Yes in theory and reality.Now if we say that they do have the same performance. Bigger harddrives tend to be faster because they spin faster on their outer edges.But it

Hi Victor In theory yes... Practically too! 100%! I'll try to compress some facts (AFAIK) on OS, FS and HDs. Some of it is in support of P

Well I have a Socket 754 CPU and then it

While I agree with everything said I'd still say in the days of 10000 rpm drives with 8MB cache and 1024MB of memory this is not even theoretically but even academic. I did not defrag my drive for almost 6 month (I do not install and reinstall any carp that comes along though). After I defragged with Perfect Disk the other day I could not see the slightest gain in performance.Alex

May be because defragging can only help so much. It

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