If the External Hard Drive is not recognized, showing up, detected, working or accessible even after plugging it into Windows 11/10, see this fix.

The Computer Will Not Detect a Second Hard Drive. When your computer is not detecting a second hard drive, it usually means that you've done something wrong when installing or configuring the machine.

I'm not looking to hook up a RAID config but I will add a second hard drive for storage at a later time. The WD drive is set to master with no jumpers and is on my IDE3 RAID port.

Use the following fixes if the second hard drive is not detected after reboot or Windows Upgrade. Before you proceed, we recommend you check for Windows Update. If an update is available, download ...

I have a 4TB WD red drive that started acting odd. It seemed to be gobbling up space, the drive said it was full, so I would delete 20-60GB and after downloading 10-20GB the drive would be full ...

The Solid State Drive Is Not Recognized By Windows 7. It's never a good feeling when you fire up your computer after installing a new drive and the system can't see the new hardware.

If the secondary hard drive isn't showing up in File Explorer, you can use these steps to resolve the issue on Windows 10.

External hard drives back up your most important files, but what happens when they malfunction? Here's what to do if your device is not detected by Windows or macOS.

External hard drives back up your most important files, but what happens when they malfunction? Here's what to do if your device is not detected by Windows or macOS.

If you have some issue due to Windows not recognizing your external hard drive, you can look at the following instructions to make it detected and usable.