On 5-11-2018 1:46, Mark Lloyd wrote:
On 11/4/18 10:50 AM, Char Jackson wrote:

[snip]

**I'm trying to think of an example. Perhaps a container of some kind,
such as an encrypted volume or something that holds a virtual disk? I'm
struggling to think of an example where a file actually needs to be laid
out contiguously. Even the Windows pagefile doesn't care where it lands
on disk.

IIRC, some early versions of DOS required the executable code files
(IO.SYS, MSDOS.SYS) to be contiguous (I think it's so the boot code can
just read multiple sectors into memory).

Bottom line, if someone is trying to free up disk space, the defragger
is the wrong tool for the job.

Not only contiguous, but in a preset location as well.
Which the "sys"command did for you on an empty drive.