If I right-click my C:\ drive in Explorer and select Properties, the disk usage is reported as 39.4 GB.
If I select all the top-level folders, right-click and select Properties the Size on Disk is reported as 29.0 GB.
If I show Hidden Folders/Files and the Protected OS files, then select everything, the Size on Disk is reported as 37.0 GB.
6 GB of this difference is down to hiberfil.sys
Can anyone clarify what accounts for the remaining differences?
39.4 - 37.0 = 2.4 GB
37.0 - 29.0 - 6.0 = 1 GB