Years ago, (1998), I came across an app called "Diskstate".
It was free then and it gives you many disk statistics.
But it is now available in a "paid" version only.
See here: http://geekcorp.com/diskstate/
It has a number of handy features but I want a very compact cut down version as follows:
A small window (without the usual windows overhead frames etc) with individual bar graphs for all logical disks.
Placed on the desktop with the ability to stay on top or not.
Can temporarily pop up a similar window when placing mouse cursor over it's systray icon (when minimised from the desktop.)
Can adjust the frequency of updates, e.g, from 2 secs to ?mins.
Place each partitions total formatted drive size at the top of each bar with the logical partition letter adjacent to each bar.
Show or hide the unusable area totals in each bar as shaded including the following files; Page file, Hibernate file, System files, Reserved space, Recycle bin.
Show the used space with a coloured fill and a value for the percent and Mbytes of free space.
Will also add or remove external disks to the list when connected, e.g. USB, etc.
Possibly but not essential, open the selected drive in Windows Explorer by right click on the desired bar.
Very small in size but legible to read.
Bars can L-R or U-D, not important.
Bars can be all the same length, dynamically scaled for varying partition sizes to fit in the window.
I need this to monitor my drives space during video footage editing.
The rest of the fancy things can stay with my original free version of Diskstate.
Please point me in the right direction if such a beast already exists.