I just recovered 1.6 GB images and office files using Disk Drill free. My OS is Windows 10. I accidentally lost one of my important file while upgrading My OS Windows 7 to Windows 10.Luckily I found the file by Disk Drill search and recovered the file. I also recovered another file of which I didnt remember the file name, then I found it by delete date search option.
It worked perfectly and none of my recovered data was corrupted.
I am satisfied.