Along with what Ken said, keep in mind that what drive manufacturers
label as 40 GB drives are labeled as less by Windows. Drive
manufacturers use their own math to determine drive size, they use 1,000
bytes = 1 kb whereas the correct value is 1,024 bytes = 1kb. Therefore,
a 40 GB drive is more like 37.25GB

Also, slack space will account for some lost space as will the Master
File Table. The file system used has a great impact on slack space.

John


Route514 wrote:
> I am a very new user to start with so bear with me. Here is my situation.
> When I am viewing C: drives properties it says that I have used 32 GB of
> space, but then when I explore C: drive and add up the folders that are in
> it, the amount only reaches 28 GB. So there appears to be a difference
> between my count and what it says. Why is there that difference? And where
> are those other files that are taking up the invisible 4 GB of space. This is
> kinda a big issue considering my hard drive is only 40 GB big and C: drives
> capacity is around 34 GB. Thanks for any help!