WD Harddisk showing wrong storage

My WD Hard disk was showing wrong storage like 31GB instead of 1TB. I tried with all options like format and Virus scan etc…
So Can i eligible for replacement or what?

Regards
Sandeep K

You need to check the partition table. Reformatting doesn’t change the size of anything…

It is possible that the remaining space on your hard drive has become “Unallocated,” which is why you only see 31GB in “This PC.” “Unallocated” space does not appear in “This PC” (or “My Computer”); it is only visible using specialized tools like “Disk Management.”

  1. Right-click the Windows Start button and select Disk Management.
  2. Locate your Western Digital hard drive and check if there is a large area labeled “Unallocated” next to the 31GB partition.
    If so, right-click the existing 31GB partition and select Delete Volume. Once the entire drive shows as “Unallocated,” right-click it, select New Simple Volume, and follow the prompts to format the partition as NTFS; this will restore the full 1TB capacity. Also read: (External) Hard Drive Not Showing Full Capacity? Try These Solutions!

This is a 9-year-old thread. If the OP meant 31MB rather than 31GB, it is quite possible that the original problem, and solution, is described here:

GigaByte BIOS bug results in loss of 1TB capacity:

https://www.hddoracle.com/viewtopic.php?p=275#p275