You may view your hard drive in Disk Management and see unallocated space. The space will be on the hard drive, but Windows cannot use it. It is like having a spare room in your house but locked off.

Between 2000 and 2019, global life expectancy increased by nearly 10% from 66.8 to 73.4 years, according to the World Health Organization. In long-lived populations such as Japan’s, life expectancy is ...