Dell Support on Bios Password Removal Unlock and reset Go to: http://dell-sd.biospassword.tech/ to unlock Dell Inspiron, XPS, Alienware, Vostro, Latitude, Get support and instruction on how to clear bios and hdd password. ===================================================== Dell inspiron Supported models: Inspiron 3043, Inspiron 3147, Inspiron 3148, Inspiron 3521, Inspiron 3531, Inspiron 3537, Inspiron 3721, Inspiron 15 5565, Inspiron 15R 5520, Inspiron 15R 5521, Inspiron 15R 5537, Inspiron 15R SE 7520, Inspiron 17R 5737, Inspiron 17R 5721, Inspiron M531R 5535, Inspiron M731R 5735, Inspiron 5542, Inspiron 5545, Inspiron 5547, Inspiron 5548, Inspiron 5551, Inspiron 5447, Inspiron 7348, Inspiron 7352, Inspiron 7347, Inspiron 7352, Inspiron 7558, ====================================================== Dell Alienware Supported models: Alienware M11x R2, Alienware 14, Alienware M14x, Alienware M14x R2, Alienware M18x R2, Alienware 18, Alienware M17x R3, Alienware M17x R4, Alienware 17, ====================================================== Dell Vostro Supported models: Vostro 3560, Vostro 3531, Vostro 7347, Vostro 15 3537, Vostro 15 3531, Vostro 3721, VOSTRO 2521 7007, Vostro 15 3521, ====================================================== Dell XPS Supported models: XPS 12 9Q23, XPS 15 L521X, XPS 14Z L412Z, XPS 14 L421X, ====================================================== Dell Latitude Supported models: Latitude 3540 ======================================================