Here, I suggest you to check out Stellar Data Recovery Professional Software that helps the user to recover their lost or deleted data from corrupted/ unresponsive hard drive or accidentally formatted hard drive and even from lost partitions of the drive. To recover your data from the affected drive you need the help of a reliable data recovery software. Type: format quick fs=ntfs and hit Enter.Type: create partition primary and hit Enter.Type: convert gpt or convert mbr and hit Enter.Type: select disk F and hit Enter (replace F with the drive letter of an uninitialized external hard drive).
Find the uninitialized, unknown external hard drive with I/O device error > Right-click on it and select Initialize Disk.Press Win + R keys, type: diskmgmt.msc and hit Enter.Connect the uninitialized external hard drive to your PC.Use Disk Management to fix not initialized error on an external hard drive You can give a try to below mentioned 2 different methods to resolve the issue: You can find out the real cause based on your own situation. Answer (1 of 15): Formatting a hard drive will cause the hard drive to map out bad sectorsthat is, make a note that they’re there and stop using them. There are a few possible reasons behind hard disk not initialized as listed below.