Question About Free Space On A Drive

[Remo]

Its a bit of a random question but someone must know

If I go to my C drive on "My Computer" right click properties I can see free space verus used space.

So for arguments sake, lets call it a 10GB drive and says 5GB full, but then I click into the drive and highlight everything

and do properties its says 4GB full

I did this on 2 computers today and the difference between properties of a C drive on "my computer" and going into the drive

and highlighting everything was generally quite different, surely the highlighted contents should be of the same size?

Confused but curious

[cdnvic]

surely the highlighted contents should be of the same size?

Confused but curious

Are you taking into account the hidden files, and the swap file?

[Remo]

surely the highlighted contents should be of the same size?

Confused but curious

Are you taking into account the hidden files, and the swap file?

Apparently not thanks for the answer you have helped refresh my brain