In June 2007 I purchased a WD 250GB external hard drive to back up my PC files. Since then it has been operating automatically and I have never had a need to restore lost files. However the external hard drive is now 78% full and I would like to delete all unecessary files to make more space available on my external hard drive.
Although my PC only has a 80GB hard drive my external hard drive is almost full (195GB of the 250GB has been used). I am using Norton 360 software to back up my files. Can anyone advise how I can delete previously saved files ?