How to fix i/o error in external hard drive

chap276

Honorable
Jul 17, 2012
1
0
10,510
Hello,
I have segate external hard drive of 1TB and from few days I am not able to access. I am using Windows vista in PC, previously error come as parameter not found, I try to format, it does not support, even though I can see my drive in computer and in computer management still I am not able to open error comes I/O error. I am desperately need the files stored in external hard drive, please help me...