I used my external hard drive (1 TB) to boot windows 10 on my new desktop. I didn't have anything on it so I didn't think hard about it. When I clicked "format" to wipe the drive, the drive would only format back to 32 GB. Is there a way to get my 1 TB drive back? Thanks!
Open it in Disk Management
Delete all existing partitions.
New partition, and format it to NTFS (it is currently FAT32)
That should return it to full size.