Try run,type:cmd In cmd type

iskPart In DiskPart type:list disk type:
list volume type:HELP For all cmds.
"Bill in Co." wrote:
> When your right click on a drive in XP's windows explorer, and get these
> different reported sizes, what is the story?
>
> Example, for a 20 GB partition - rounded to 3 significant digits below:
> (choose whichever I guess; the two listings below are seen next to each
> other in windows explorer):
>
> 12. 4GB 11.5 GB used spaee (tot capacity adds up to
> 19.9 GB)
> 7.56 GB 7.04 GB free space (tot capacity adds up to
> 18.6 GB)
> (tot = 19.9 GB) (tot = 18.5 GB)
>
> and as yet a third variation reported in BING:
>
> 11.9 GB used,
> 7.22 GB free
> (total = 19.1 GB)
>
> Anyone have a good explanation for the differences? I assume part of it
> might have to due with the defenition of the HD sizes, e.g.: 1 GB or 1.024
> GB, for "1 GB size" - not sure?
>
> or for a 40 GB example:
>
> 20.36 GB 18.9 GB used space
> 19.64 GB 18.2 GB free space
> capacity:
> 40.00 GB 37.2 GB
>
>
>