I have a Seagate FreeAgent Go 500 GB external hard disk. Yesterday i copied about 10 files into the hard disk, totaling to about 7 GB from a Windows XP desktop but when i plugged it into my laptop running windows 7, the files were missing! I connected it back to the Windows XP desktop and the files were still missing. I selected "show hidden files/folders", "show protected operating system files" on both the computers but to no avail. The free space on the hard disk indicates the files are still present on the hard drive. I scanned for viruses and malware and the disk and the systems are clean. I ran HDTune and the hard disk is OK(no bad sectors). I then decided to use data recovery tools, and scanned the hard disk using R-Studio and GetDataBack. Both tools showed the missing files in the drive and I recovered them and backed them up. However I am unable to delete these files from the hard disk since both the recovery tools don't give me an option to remove the files from within the software. I tried using TreeSize to check if i could access the files and delete them, but even TreeSize does not show me the missing files. I am in a dilemma and running out of disk space. Please help me!