I have a server (Windows Server 2008 R2 SP1), which is reporting only 2 GB free space on C drive. But when I run WinDirStat or Treesize over the disk, both of them say that only 21 G is being used out of 40 GB.
I have run the Disk Cleanup tool to remove windows update backup files from winsxs folder.
I tried running "vssadmin List Shadows" on a command line, and I got the following result:
No items found that satisfy the query.
I have made sure that System files are not hidden as well as protected OS files.
If I am only using 21 GB out of 40 GB, I should have roughly 19 GB free space. Where is the other 17 GB? What can I do to find what is using it up?