I bought a Seagate external hard drive about two years ago to back up important files. Most of the time the external drive is detached / unpowered. I have used it about 30 times to add new files. It is now useless for further back-up due to corruption. I have run check disc five times. It seems to fix the problem but then a new transfer of data is interrupted as further corruption has appeared. My last external hard-drive, a Lacie, lasted for about fifteen years. I am very disappointed that my Seagate had become defective so quickly.
