By Cherry / Last Updated May 15, 2020

“My second hard drive not recognized”


I had a hard drive failure and bought a new Seagate SATA internal hard drive. It works fine. However, my second Western Digital EIDE hard drive not recognized. It has no operating system, just all my personal files and stuff. I have tried every configuration I can think of with no luck. So, I’m here to ask if anyone know how to solve the question that the second hard drive not recognized? Any help will be appreciated!

Why hard drive not recognized?

There are so many users have met the problem that external hard drive not detected by computer. And there are so many situations will cause the problem: partition issues, dead USB ports, driver windows conflicts, file system, dead of outdated drivers, etc.

How to solve second hard drive not recognized?

To solve the second hard drive not recognized problem, you need to find why it happens. And then, solve it with the specific way.

Dead of outdated drivers/driver windows conflicts

If your plug your second hard drive in some other port, but you cannot see the second hard drive in Windows Disk Management, you should consider that there might be some issue with the external hard drive. Then, check it in some other computer. If it is working in some other system but not in yours, the Windows is having some problem with the drivers. Then, you need to diagnose a driver problem. ClickStart, or press Win + R, type “devmgmt.msc” in the run dialog. Press Enter. Expand Disk Drives and look for a device having yellow exclamation mark, which indicates a problematic driver. Then, right click on that device and read the error message after selecting properties. Then, you can try the following two ways to resolve this issue:

>Click on update driver button for installing updated drivers.

>Uninstall the driver and restart your computer. After restarting, the Windows will automatically reinstall and reconfigure the driver.

Dead USB ports/partition issues

If it is not the dead of outdated drivers/driver windows conflicts problem, to solve second hard drive not recognized, you need to check whether it is because of the dead USB port. Unplug your second hard drive and plug it in some other USB port to see if it can be visible in My computer. If not, you need to open Disk Management of Windows to see whether your second hard drive not recognized because of no partition.

Click Start > Control Panel > Administrative tools > Computer Management > Storage: Disk Management.

If it is visible here, you can see your second disk, but not active (initialized). then, you need to make active drive.

Right click the hard drive, select New Simple Volume option to create partition.

Wait and drive will change status to “Healthy” at top windows and the drive will now be accessible and visible in “My Computer”.

File system issue

Sometimes, your drive is formatted with the ext4 file system of Linux, or other file system which is not recognized by your Windows, will also cause your external hard drive not detected. Under this situation, you need to reformat your second hard drive.

Right click on the partition, select Format, and then, choose the file system you need.

Notes: Format drive will delete all data on your drive. Thus, you need to backup files to another hard drive in some other system before proceeding.

Or, you can take a simpler way to solve this issue. The AOMEI Partition Assistant is a great partition manager that can replace Windows Disk Management. It can be used to manage your hard drive better. For this issue, you can FREE download AOMEI Partition Assistant, install and launch it, the basic environment of your disk(s) will be displayed in a concise interface.

If it is because of the second hard drive not active, here, right click the second hard drive, select Create Partition.

Create Partition

If it is the file system issue, here, right click the hard drive, select Format Partition. Then, format the partition to the file systems compatible with Windows OS, like FAT32, NTFS.

Format Partition


AOMEI Partition Assistant is a powerful partition manager that can manage all your hard drives including internal and external hard drives well. You can partition hard drive with this freeware flexible. What’s more, AOMEI Partition Assistant Professional edition provides you to allocate free space, so that you can take full use of all free space; the partition alignment can improve the performance of hard drive, etc. It is worth to have one.