3TB 64-bit WIN7 system is better. Don't tell me you're a notebook.
Start directly from the jumper connection of the chassis, and then look at disk management after entering the system.
Or download a professional disk tool, such as PQ software, and have a preliminary test! It's best to test under PE (actually, take a CD-ROM drive system or a USB flash drive system, first boot into the bios to see if there is any wood? Or after entering the PE system, you can also use HDDlife disk tool to detect! Sometimes you can just fix it with these softwares)
At first, it cost 900 yuan at least. Try to get it after sale. Try to fix it!
Oh, buy acne! After all, 3T!
Poor kid!