All the space on Drive 0 has been partitioned and is in use. This could be due to the presence of one or more partitions that occupy the entire disk.
He walked back to his desk, opened a notebook, and picked up a pen. He wrote the date at the top of a blank page. Then, he began to write. drive 0 unallocated space 0.0 mb
The Master Boot Record (MBR) or GUID Partition Table (GPT) is so badly damaged that the system doesn't know where the storage begins or ends. All the space on Drive 0 has been partitioned and is in use