I'm having an issue here that, so it seems, many users have had. My used disk space on an internal disk is off. And not just by a few GB.
It's an external Western Digital backup drive. I use it for filehistory (in a Truecrypt virtual disk, so one big file) and just some storage.
The drive itself is 1TB. All my files together are about 386 GB. I have confirmed this with the program TreeSize. Yet, Windows tells me that I have used up 687 GB of the total 931 GB.
So the issue here is not that I have 931 GB instead of a thousand. The issue here is that Windows thinks I've used 687 GB of the 931 GB, while I have actually only used up 380 GB.
This is quite a lot of space I'm losing here. It could be that I never noticed it, but now I did and I'd like to fix it..
What I've checked so far:
- Shadow copies - Turned off
- Turned off indexing
- Tried the disk in an other system
- Checked if there was a hidden partition, but it's an actual full size partition
- Removed Recylebin folder
- Checked with
dir /afor hidden files or folder
- Used TreeSize for hidden files or folder, but this gave me the actual size, and the same "used" information as Windows explorer