Why isnt my portable hard disk working properly?
okay, i have a Samsung s2 500gb portable hdd. when i first bought it was working properly. then after a few days i connected it to another PC and it was affected with virus as a result i had to format it. after formation it was working nicely then i had formatted it 2 times for other reasons. then one day i was transferring data from my pc to my hdd then i saw it became slow. and no matter how much i try it doesn't get any faster. after that i formatted it once but it was of no help. after formation the hard disk is fast at first but after transferring 100 or 150 gb data it becomes slow again! i cant understand what to do. plz help. (my pc is protected by kaspersky internet security.)