When i was formatting one of my laptops, i forgot that my external hard drive is still plugged to the system so as i was trying to format, i mistakely deleted my external hard drive patition ever since then i have not being able to access all the files in my external drive. I letter came acroos a software called active@ partition recovery. i bought it and used superscan to scan my external hard drive yet it could not solve the problem instead its showing me this message; "unable to read sectors on a device". please help if you have a solution to it.