My WD external hard disk wasn't getting detected by windows. Upon looking up at Disk Management in Computer Management, I found out that the disk was made unallocated. This was troublesome since it was working fine a day ago. After a few hits on Google, I came across a utility named TestDisk . It's an open source application which diagnoses hard-disks, recover data and correct disk errors. The official website describes the software as this -- TestDisk is powerful free data recovery software! It was primarily designed to help recover lost partitions and/or make non-booting disks bootable again when these symptoms are caused by faulty software , certain types of viruses or human error (such as accidentally deleting a Partition Table). Partition table recovery using TestDisk is really easy. TestDisk can Fix partition table, recover deleted partition Recover FAT32 boot sector from its backup Rebuild FAT12/FAT16/FAT32 boot sector Fix FAT tables Rebuild ...
Universe from my perspective..