my old hard drive have some bad sectors, so i purchased new hard drive and installed it with fresh os, after that connected my old hard drive along with my new hard drive in another sata port, intially it showed my old drive i try move files from old to new drive, where old drive shown in my computer panel soon restarted computer after some driver installtion from there onwards my old drive not detected, even in bios settings too.

  • Sounds like the HDD is in pretty bad shape. What you describe is typical with a HDD with bad sectors. The fact your computer restarted while accessing the HDD indicates it encountered a hardware failure it could not recover from. – Ramhound May 5 at 15:03

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