I tried to plug it from my Mac Air to my Mac Pro, same thing. And Seagate hard drives are popular among computer users for their good performance. Now click on Disk Management on the left-hand side. I just bought this harddrive a couple of weeks ago and it is bailing on me. My WD Elements 2TB External hard drive is not working. As is known to all, Seagate is a relatively common hard drive brand. The following are some solutions to solve "Seagate external hard drive not showing up or detected". If not, click here. Now check on This PC to see if the external hard drive gets detected; If the external hard drive still does not show up, then restart your PC. Document the disk number provided in this window (Disk 1, Disk 2, etc…). Part 2. You can blow into the port to clear the dust. Additionally, the computer is not recognizing the harddrive. The light on my USB hard drive (1TB) is not flashing when I plug it into the computer USB port and into the charging socket. I’ve had this external hard … My MacBook Pro won’t recognize the device. It is a Seagate 750GB external hard drive. Then I tried the older Seagate, just my luck that too is blinking light, not being detected on my macs. Scenario 2: External Drive Not Working but Blinking. This should show you if the drive is truly readable. The tiny bulb is constantly blinking when plugged in. So, it's essential to make it works fine all the time. Showing there is power, just not reading. Method 1: Enable all Hidden Devices. Here is my shot in the dark. ... and selecting Manage. i have very important documents on the harddrive that I need access to. Click on the “Volumes” tab. Click on Properties. Seagate external hard drive is always used to back up important data or transfer data between computers. Then click on Disk Management. Preliminary Fixes. Right click on your external drive listed under Disk Drives. When I plug in the computer USB port the drive is not detected; the green led blinks and I can hear weak continuous beeps. Tip: Maybe your Seagate external hard drive beeps 11 times but not recognized with a flashing light or you meet hard drive beeping and not booting. A common cause of your seagate hard drive beeping is a very simple one: a dusty port. In this scenario an external hard drive is active but cannot be detected by the computer. A blinking light can also be a sign, however, of hard drive failure. If you see the drive is detected here continue reading. Click on Populate. 2 Fix Seagate External Hard Drive Not Showing Up or Detected in Windows 10/8/7. I’ve tested and swapped the USB cable and Power output, checked on a different computer and looked at Disk Utility, ALL with no luck. In case it appears initially but later disappears, then repeat the step above, and go to Disk Management - Change Drive Letter -- Reconnect it. When your external drive isn’t functioning properly and isn’t showing up on your computer, the LED light can give you a general sense of what’s going on. Follow the methods shown below to fix this issue. Before initiating the process to fix the issues with your hard drive, some external drives have power cables or a physical power switch, which should be ON at all times for you to perform operations on the disk. How to Fix External Hard Disk Detected But Not Opening? Fix 3: Modify Registry Now on the newer Seagate I went to recover something from it and the light is blinking but its not being detected on my mac. It is a simple step, but you should check it before anything. In this case, the disk is completely damaged an unusable; there is not any way to retrieve the data back. In addition, there are some other factors for the problem like improper device settings, outdated or corrupted hard drive driver, a virus, etc. To do so: 1) Disconnect your seagate hard drive to computer. If you are bothered by Seagate external hard drive light blinking but not detecting, you can try using a different USB port or cable and restart computer 2) Unplug the cable from the hard drive. However, users may sometimes encounter problems like Seagate hard drive not detected or Seagate hard drive not recognized. 3) Blow into the port of the computer, the hard drive and the cable The client in this Seagate hard drive repair case had noticed that their external drive’s LED was blinking.