Linux command low level format

Warning!!! This command will destroy all data on your drive

This command is use to check bad sector on a hard disk.

dd if=/dev/zero of=/dev/sda1 bs=1024

Now we know that is a trouble at first 1 GB

Make uninitialized disk using diskpart

Warning this command will erase all of data on the disk!!!

1. run cmd
2. type : diskpart
3. type : list disk
4. select the disk you want to clean / uninitialize, in this example : select disk 1
5. clean
6. done

This steps are useful if we want to change the disk partition type (GPT or MBR or other)