I have a Dell Inspiron 15 (3878) running Win10 with a Toshiba 160GB hdd. The problem started with the laptop constantly shutting down after restarting from a recent update. I decided to format and doa fresh instal with the latest Win10 download. Everything went fine until windows tried to load. . . it doesn't detect a hdd now. I have reinstalled 10,7,and Linux Mint twice each with the same results. My desktop has no problems reading it and chkdsk, wmic, and BIOS show the hdd is there and healthy with 0 errors. Even tried moving files to and from it with success.