Just got this used HD. Formated it. Strange thing happens. It lags to the point of being almost unusable. It sometimes forgets or acts slow to recognize its drives. It is partition in half. When transfer it starts off fast but then slows down and takes forever for it to finish sometimes it wont finish. Ive noticed in my win 7 sometimes it wont recognize the drives but when Install it in my Ubunto it recognizes it immediately but it also lags. Its near impossible to transfer multiple files. When I transfer big files it takes forever but starts off superfast. It definitely has had issues because thats not how it suppose to work. In ubunto something strange things happens when I transfer files to the drive it works better and mostly transfer it but when I transfer from the drive to ubunto, ubunto doesnt accept big files. It says something about splitting or something.
My solution to this has been to format it. I thought the quick format would do it. That didnt help much. Then tried the Full format. That took forever. Eventually I quit it. I might try it again if advised. The previous owner had tons of hacked stuff on it and am not sure if thats interfering with it. He never told me he had issues with it and when he showed it to me it appeared fine. I dont think he'd be using it if it was this faulty. I can try chkdisking it too but have noticed one time I tried it took a long time. Wanting to restore it like if it was from the factory working it without issues.