Long dst and short dst fails but when i check for bad sectors using ease us i get no bad sectors. I used hdd sentinet . it showed that my hdd has 41% health. My laptop is getting slower day by day. Even when i try to open vlc media player my disk usage goes to a hundred with 0.1 mbps speed. I have tried clean install twice. And i get read and write speed of in 300-400 kbps. When i tried to take backup of my files to another disk some files are not found and i had to skip them