I have a 60 GB SSD and it says I have about 7 GB of free space even though a properties lookup of the C drive shows less than half of the drives capacity is used. I've checked Disk Management and see that there is only one main partition of the appropriate size along with a 100 MB reserved for the system. I have shown both hidden folders and files as well as protected system files. I've taken ownership and added admin rights to myself on all files so that I get a true reading of the space they are taking up. I have system restore, hibernation and paging turned off so they aren't holding a bunch of space for themselves. I have also checked for any folder that may be holding a Windows 10 install folder on my Windows 7 machine. Where else can the missing data be?