whs said:
I assume you did account for the binary conversion. In binary Gigabytes are always 7% less than in decimal.
I had taken into account it was counting up to 1024 not 1000. But the math still doesn't work out. Also if you look at the chkdsk screengrab, it says 61540628KB used in 11 files. What and where are these files?! To my mind I should have an empty $RECYCLE.BIN, empty System Volume Information, maybe a desktop.ini and my 50Gb truecrypt container - 4 files.

Don't worry about it guys - thanks for time wasted thus far, but it's not crucial. As & when I start to run out of space I'll try wiping the drive and remounting a Truecrypt file for My Documents. See what happens then.

Unless anybody wants to continue with this let's put it to bed, unresolved.,
Thanks
D