120 Gb of Files Occupy 160 Gb on Hard Disc, - Why?

  thegreypanther 17:09 19 Jun 07

I have just done a hard disc backup on my D drive which is used exclusively for data. There are no programs on it, and no temporary files. The disc properties show that data occupies 160 Gb out of the available 250 Gb.
However, I have found that the backup occupies only 120 Gb on the external hard disc, and the individual folders on the D drive also occupy only 120 Gb.
Any ideas as to what makes up the extra 40 Gb?
Defragmenting doesn't seem to help much in this respect.

  James1947 17:12 19 Jun 07

Possibly an area of the drive reserved for system restore.

  Quiet Life 10:46 20 Jun 07

What about the Recycle Bin? Each drive has its own one and on the backup program I use it does not get transferred. Neither did the temporary folders.

  Diemmess 10:58 20 Jun 07

You don't say what method you have used for the backup. Most prorietory backup programs compress the data and that may be what is happening to you.

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