>The reason is simple : when you delete
>c:\windows, you have a lot of fragmented space; if
>you defrag, free space will be unfragmented but
>not in the disk's most effective place -the closest
>to the FAT, etc.  When you do format c:, you have
>all of the HD free and can do reinstall in the best
>way, filling the effective place with os and moving
>your data in last.

Yeah, I heard this theory before, but is this
significant, is the performance improvement
measurable? I think deltree c:\windows is an
acceptable alternative.

Dan

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