I have a 1TB Seagate Back up Plus external harddrive, and it wont show up in my Mac Pro. The Mac Pro is the 2006 Intel Xeon model running 10.6.8 Snow Leopard. The System requirements for the external HDD are snow leopard or higher, so I don't know why it isn't working. Seagate 4 TB Backup Plus USB 3.0 Portable 2.5 Inch External Hard Drive for PC and Mac. 4.5 out of 5 stars 3,389. 3 offers from $214.00. Seagate Backup Plus Portable 4TB External Hard Drive HDD – Red USB 3.0 for PC Laptop and Mac, 1 year MylioCreate, 2 Months Adobe CC Photography (STHP4000403) 4.6 out of 5 stars 345. Now, your hard drive will show up on your system. You can restore your files on to the drive once again. Situation 3: External Devices not recognized by PC. When you cannot locate your hard drive on Disk Management or Computer, you can try methods as listed below to get rid of the issue 'Seagate external hard drive not showing up'. PC Gaming FireCuda Gaming Dock FireCuda Gaming SSD FireCuda 520 SSD FireCuda 510 SSD FireCuda 120 SSD. NAS IronWolf Hard Drives IronWolf SSD. Surveillance SkyHawk Hard Drives. Personal Storage. External Drives Ultra Touch One Touch Expansion BarraCuda Fast SSD Backup Plus Basic Photo Drive Backup Plus Hub.
- Seagate Backup Plus Drive Troubleshooting
- Seagate Backup Plus For Mac Instructions
- Seagate Backup Plus Portable Drive Not Showing Up On Macbook
- Seagate Backup Plus Portable Drive Not Showing Up On Mac Desktop
- Seagate Backup Plus Not Working
I had this exact same problem with 2 Seagate Expansion drives. I tested on 4 computers. Both drives worked on 2, but didn't show up on the other 2. I messaged OP to see if he'd ever found a solution, and he let me know he resolved the issue by installing the below HFS+ driver from Seagate's site.
Seagate External HDD Won't Show Up
There are many reasons that will lead a Seagate external HDD Won't show up on a computer.
Reason For External HDD Not Showing Up:
- The USB isn't connected properly.
- The USB port might be faulty.
- The corrupted file system on the Seagate Hard Drive.
- Driver issues in Windows.
- Virus attack and malware infection.
Seagate Backup Plus Drive Troubleshooting
Before getting into advanced troubleshooting steps, perform the basic troubleshooting steps given below.
- Remove the USB cable and connect it to another port on computer.
- Look for any damages to the cable and replace it.
- Check the External Drive on another device.
- Check the power supply for the external HDD.
- If a surge protector is used, plug the power adapter directly into the wall outlet instead.
Advanced Troubleshooting steps for Windows:
For advanced troubleshooting, you need to check Device Manager Disk Management.
- Hold the Windows Key and press R.
- When the Run box opens, type compmgmt.msc.
- Click on Device Manager.
- Check the disk drives in the middle window by double-clicking it.
- Look for your drive name. If your drive is listed, right-click on it.
- Click on the Properties tab.
- Click on the Volumes tab.
- Click on Populate.
- Document the disk number as Disk 1, Disk 2, and so on.
- Click on Disk Management, which is on the left side.(Disk Management will allow you to view the drive's health.)
- Now, it has to show either RAW or Unallocated.
- After the basic troubleshooting, if it shows RAW or Unallocated, then you have to format your external hard drive. Before formatting, you have to back up the data on it.
Once the formatting has been done, look for the following details.
- Look for NTFS. If it is missing, then the file system is corrupted and you need to format the drive.
- Check the memory to see if the drive is correct. If you have a 1 TB drive, it should say 931 GB.
- Verify if the drive has a drive letter. If it is missing, you need to change the drive letter.
- Right-click and choose the option Change Drive Letter and Paths.
- Next, click on Add and then give a letter. Now, click OK.
- If the drive isn't shown under Disk Drives, try the next method.
Troubleshoot from Device Manager:
- Go to Start, click on the search bar, and type Device Manager.
- Look for an unknown device or any other device with a yellow symbol.
- Expand the Universal Serial Bus controllers section to view a clear entry.
- If any unknown device is available, then right-click on it and click Properties.
- Click on the General tab, look for Device Status and an error code 10 or 28.
- If error code 10 is displayed, then your drive isn't working.
- If important data are available, you have to recover it and replace it if a warranty is available.
Other than error code 10, if you see the error code 28 or 43, then follow the steps given below.
- Once the driver is installed, check Seagate External HDD Won't Show Up if you are still receiving the same error code. If yes, contact our technical team for assistance.
Summary :
External hard drive not showing up? Windows doesn't recognize external hard drive? How to make such drives appear in Windows so as to access the files in it? In this post, we show you the most feasible solutions as well as more approaches that could help you recover data from external hard drive not appear.
Quick Navigation :
While scanning forums, we find so many users are bothered with the external hard drive not showing up issue. Here is one typical case we extract from ccm.net:
Q: Seagate external hard drive not showing up in my computer
My 320 GB Seagate external hard drive is detected but not showing up in my computer. In cmd> diskpart> list volume it does not show up. In Device Manager it gets detected. In Disk Management it shows up as 'unallocated'. If I initialize it, will I lose all data on the drive? It had 4 partitions. In My Computer also it does not show up. Even BIOS recognizes it. What to do? I don't want to lose any data on the drive. If I initialize it in device manager will I lose data?
Are you also troubled by hard drive not showing up? Have you got the effective workaround? If not, we give you 10 possible reasons as well as solutions to help you address this issue.
A USB flash drive may also fail to be recognized by Windows 10, but don't worry, you can fix the problem and recover data from it in most cases.
You might also be interested in Hard Drive Space Is Missing? Revit frame mac. Take These Ways to Find It out
Case 1. The hard drive is not initialized
This usually applies to new hard drive not showing up. If you are using a brand new hard drive, please check out if this hard drive needs initializing. You may go to Windows Disk Management and have a check. If Disk Management shows the disk as 'unknown/not initialized' and pops up a window asking you to initialize it, this new hard drive really needs initialization before you can use it. Then, you will have to create new partitions on it to make the new hard drive appear on computer.
To make things easy, use MiniTool Partition Wizard to help you. Detailed steps are shown below:
Step 1. Run MiniTool Partition and choose Create Partition.
In this main interface of this free partition manager, distinguish the new hard drive by viewing the hard drive information. Since a new drive has no partition, please select the unallocated space and choose Create Partition from the action panel.
Step 2. Customize the new partition.
In the pop-up window, specify the partition label, partition type, drive letter, file system, cluster size, and partition size. Then click OK.
Step 3. Click Apply on the top left corner to start.
When you have created new partitions on the new drive, go to File Explorer to check. These should remove new hard drive not showing up error.
Case 2. The hard drive has no drive letter
External hard drive not showing up also occurs when the partition on the external hard drive has no drive letter. To make the hard drive show up, you just run MiniTool Partition Wizard and add a drive letter to it.
- At the disk map, select the partition that has no drive letter and choose Change Drive Letter from the action panel.
- In the pop-up window, drop down the drive letter box and choose a drive letter you like. Then press OK button.
- Back to the main interface of MiniTool Partition Wizard, Click Apply on the tool bar to put this operation into effect.
Case 3. Hard drive is hidden
If the hard drive is hidden by some partition manager, it won't appear in File Explorer. However, this time you cannot fix this issue by simply add a drive letter to it. You should use that specific partition manager or MiniTool Partition Wizard to unhide that partition.
But how do you know the hard drive is hidden or not? Usually, hidden drives also have no drive letter, but cannot be fixed by adding a drive letter. You can open Disk Management, right-click the partition that has no drive letter, and see whether the feature 'Change Drive Letter and Path…' is greyed out.
If this feature is greyed out indeed, you can use MiniTool Partition Wizard to help.
- In the main interface of MiniTool Partition Wizard Free, select the hidden partition and choose Unhide Partition from the action panel.
- Select a drive letter from the pop-up window and then click OK. Step 3. Press Apply at the tool bar.
Case 4. Partitions are lost
If all partitions on the external hard drive are lost due to some reasons like virus attack and corrupted partition table, the external hard drive not showing issue occurs. In this case, the first trying is to recover all lost partitions by using MiniTool Partition Wizard Pro (not supported in the Free Edition).
Step 1. Go to Partition Recovery feature.
Run MiniTool Partition Wizard to the main interface. Then right-click the external hard drive and choose Partition Recovery from the tool bar.
Step 2. Choose scanning range.
Select the scanning range such as the full disk, the unallocated space only or specify the scanning range and click Next. It is recommended to choose 'Full Disk' or 'Unallocated Space' if you do now know the specific starting LBA and ending LBA for the lost partitions.
Step 3. Set the scanning range.
Choose Quick Scan first. If this does not work for you, the go back to choose Full Scan.
Step 4. Check all partitions you need.
After a while, MiniTool Partition Wizard will list all partitions it has found. Here you can double-click a partition in the list to check the files in it. After confirmation, check all partitions you want to restore. Please note that partitions not checked will be lost and MiniTool Partition Wizard cannot help you that time.
Step 5. Confirm the operation by hitting Apply.
If MiniTool Partition Wizard fails to find the lost partitions for you, you can try professional data recovery software which helps recover data from lost partitions. Luckily, MiniTool Partition Wizard Pro Ultimate just comes with such a powerful function. And you may just follow the guide below to have a try.
Step 1. Go to Data Recovery.
After installing this data recovery software, run it to get the main interface. Then right-click the partition of the external hard drive to choose Data Recovery.
Step 2. Check files you need.
MiniTool Partition Wizard will immediately start the scanning process and list the found files as well. During this process, you can unfold each partition folders to check what files are the one you need. Please make use of the Preview feature to help you determine when it comes to TXT files and images. However, to get the best disk recovery result, it is recommended to wait for the completion of the scanning.
Step 3. Save files.
Tick the ones you need and press Save to store the selected files to a safe location. Note that you should choose another disk instead of the external hard drive to be recovered.
When you have finished data recovery, you can recreate new partition on the drive to cope with hard drive won't show up issue.
Case 5. Unsupported or RAW file system
If the external hard drive has unsupported files system or hard disk become RAW, the partition bar won't show up in Windows File Explorer. You can only see the drive icon and drive letter there. If you try to access the drive, Windows requires formatting.
To fix this issue, you need to recover data from the external hard drive first, and then reformat the hard drive with FAT/NTFS file system. Please refer to Case 4 and use MiniTool Power Data Recovery (Damaged Partition Recovery) to help you recover data. Then use MiniTool Partition Wizard Free Edition to do the formatting.
Case 6. Drive not enabled in the BIOS
If hard drive is not showing up in Disk Management and Device Manager, it may be because it is not enabled in System Setup (BIOS). Some motherboard manufacturers disable unused ports in the BIOS by default, which is the common reason for the 2nd hard drive not showing up in Windows 10/8/7. You will need to enter BIOS to verify their current states and make sure all hard drives are enabled. Note that different computer manufacturers have different methods to enter system BIOS, please check your system documentation for specifics.
Case 7. Faulty cable or port
If the data cable is damaged or the connection is incorrect, the BIOS will not detect the SATA cables and can sometimes fall out of their connection. Be sure to check your SATA cables are tightly connected to the SATA port connection. The easiest way to test a cable is to replace it with another cable. If the problem persists, then the cable is not the cause of the problem.
Case 8. Troubleshoot drivers
Usually, Windows offers hard drive drivers and the manufacturer of your SSD may also have released some drivers to support your disk. However, it is possible that they are the causes of your hard drive not showing up problem. If the driver you use is outdated or problematic, you need to disable or uninstall it. If you are not familiar with the process, use professional driver tool to help you get rid of the worries.
Case 9. Virus attack
Seagate Backup Plus For Mac Instructions
Some malware or viruses can lead to hard drive not showing up issue. It is possible that there are such malware or viruses on your computer. In this case, please run security software on your computer to scan out and remove these malicious programs. Then, check if Windows doesn't recognize external hard drive issue still persists.
Case 10. Faulty hard drive
If you have completed the above checks and the external hard drive is still not showing on your computer, you should send the hard drive to repair center and check whether it fails. If it is still in the warranty, please proceed to begin a warranty replacement.
Seagate Backup Plus Portable Drive Not Showing Up On Macbook
We also recommend reading our guide Quick Fix 'SSD Not Showing up' in Windows 10 without Data Loss.
Summary
Above are the top 10 situations as well as the solutions for new hard drive not showing up/external hard drive not showing up. You may just have a try and see if they are helping. We hope you will never take the last one. If you have any questions or better suggestions, let us know by tying them in the comment section below. Or you can contact us via [email protected].
External Hard Drive Not Showing Up FAQ
- Check if the hard drive appears in Disk Management and all the partitions do have a drive letter.
- Check if the hard drive is properly installed.
- Check if the hard drive is BIOS detected.
- Connect the hard drive to anther interface or another computer.
- Check if the hard drive is physically damaged.
- Check WD external hard drive in Disk Management. Do all the partitions seem normal?
- Try another USB port or another computer.
- Troubleshoot the driver issue.
- Format the hard drive.
Seagate Backup Plus Portable Drive Not Showing Up On Mac Desktop
Seagate Backup Plus Not Working
- Run diskmgmt.msc. In the pop-up window, you will find all disks connected to your computer.
- Open This PC on Windows 10, then you will see all the partitions on your hard drives are shown up there. Be aware that only FAT and NTFS partitions can be accessed normally.