external hard drive does not appear

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• Drive external hard drive does not appear under "devices."

  Hello

  I just updated my OS to Sierra of MacOS. I have connected my external hard drive (HDD) and it does not appear under "Devices" in my Finder window. It worked fine before the update.

  I use a MacBook Pro (end of 2013), currently running MacOS Sierra (Version 10.12). My external HARD drive is a SeaGate Slim SL Media (500 GB).

  The external HARD disk appears in disk utility application. He also appears on the about this Mac > system report > USB. I don't know what the problem is, the external HARD disk is identified but does not appear for use in the Finder window.

  I read that it could possibly be in mode 'sleep' and putting the MacBook to sleep (while it is plugged into the external HARD drive) and it to wake up again should solve the problem. However, it did not work. No more restarting my MacBook. It was mentioned in another post that it may require extra power, so I attached power adapter and again, without success.

  I do not want to clear the contents of the external HARD drive.

  Is there a way to get my external HARD drive works as expected with my MacBook?

  Thank you much in advance.

  I also have this problem.

  My camera is Macbook Pro 13 "retina 2015 and Seagate Backup more 1 TB (NTFS - Paragon NTFS)

  * Edit *.

  

  My HDD show in report system > hardware > USB

  but it does not show in Finder or Desktop.

• "My external hard drive does not appear in Windows Explorer and cannot open 'Help and Support', an error message" Windows cannot open help and Support because a system service is not ongoing.

  Original title:

  Everything was fine until yesterday. Juice now, when I plugged the external HD into the USB port it does not appear in the 'my computer' window. It is recognized by the computer as it is present on the list of the "Disk Clean Up" and it also appears when I click on ' Safe Remove Hardware ' on the taskbar. But if she does not appear in the 'my computer' window I can't work with it or don't even know what it I have arquived in it.

  Trying to find a solution, I realized that same 'information system' to 'System tools' is also not available. Pops up a window saying that "Windows cannot open help and Support because a system service is not ongoing enforcement. " To resolve this problem, start the service named help and Support '. OK, I tried to open 'Help and Support' ' Start Menu ' and the same window appeared again to "not have a system service that runs". I don't know what her soul precisely and I have not the slightest idea of what I need to do to correct this 'disappearance' of Service 'system '. There is nothing without the appearance of HD in the window of thw work? Everything else works fine and the calculation is virus-free. What should I do?

  Hello

  You did changes to the computer, before the show?

  Solution A:

  For the problem with the external drive not appearing is not in Windows Explorer, see the following methods.

  Method 1:

  Check out the following link.

  A computer that is running Windows XP cannot detect a USB, an Apple iPod flash drive or an external hard disk drive

  http://support.Microsoft.com/kb/925196

  Important: This section, method, or task contains steps that tell you how to modify the registry. However, serious problems can occur if you modify the registry incorrectly. Therefore, make sure that you proceed with caution. For added protection, back up the registry before you edit it. Then you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click on the number below to view the article in the Microsoft Knowledge Base:

  322756 how to back up and restore the registry in Windows

  Method 2:

  Connect the external hard drive on another USB port and check.

  Solution B:

  For the problem with the help and Support, check if the service is enabled.

  a. click Start, click run. In the Open box, type services.msc and press ENTER.

  b. right-click on the service called Help and Support , and then select Properties.

  c. under the general tab, set the type Startup to Automatic and click Start.

  d. close the services window and check for the issue.

• 2nd partition on my external hard drive does not appear in windows 7

  Hello

  I partitioned the standard hard drive of my system by partition magic. He managed. But this time my drive external hard was also plugged in the computer.

  After you restart the system, I discovered that partition 1 my disk external drive of 500 GB is accessible but 2nd 500 GB partition is not displayed in my computer. In disk management it shows but have no details and no letter. I tried to rename the letter, but got an error on disk management.

  I have seen other threads associated with this problem as using DISKPART or uninstall the driver but no help. Because after you have reinstalled the driver 1 partiton is visible but not another.

  DISKPART > list volume

  Volume # Ltr Label Fs Type size status Info
  ----------  ---  -----------  -----  ----------  -------  ---------  --------
  Volume 0 D DVD - ROM 0 B no media
  System sound volume 1 Eman NTFS Partition 100 MB
  Volume 2 C NTFS Partition 95 GB Boot sound
  Volume 3 G GB 191 healthy Partition NTFS
  Hidden volume 4 recovery NTFS Partition of 10 GB healthy
  Volume 5 E my passport NTFS Partition 465 GB healthy

  DISKPART > list disk

  Disc # status size free Dyn Gpt
  --------  -------------  -------  -------  ---  ---
  Disk 0 online 298 GB 0 B
  Online disc 1 931 GB 0 B

  DISKPART > select disk 1

  Disc 1 is now the selected disk.

  DISKPART > list partition

  Partition # type Offset size
  -------------  ----------------  -------  -------
  Partition 1 primary 465 GB 1024 KB
  Partition 2 465 primary GB 465 GB

  What should I do to access my 2nd partition?

  Hello Manu,

  I found a temporary solution to this problem. I resized the partition unknown by reducing 1 GB

  and he attributed the letter. It works fine now. But now that the partition of 1 GB is now displayed as unknown. My data was sure, my 2nd partition was not full.

• Toshiba Stor.E Canvio HARD drive does not appear

  Hello

  I got a Toshiba Stor.E Canvio for about 2 years without problems

  By using the external drive recently and the USB cable is removed accidentally. After attempting to connect the USB on my Mac again once the external HARD drive does not appear in the Finder.

  Passing through the disk utility, the hard drive is visible, but I am unable to check or repair the disk.

  The message I get is

  "Peut-t disk utility repair this disk. "Save as many files as possible, reformat the drive and restore your backed up files.

  The HARD drive itself is turned on, the light is on... but I'm stuck now

  Any help would be appreciated

  Gary

  I m not iOS expert and, therefore, I cannot recommend to any advanced troubleshooting but recommend you check out this thread:
  http://Apple.StackExchange.com/questions/130304

• my computer detects the usb pen, but when I try to send files to it in "send to" my hard drive does not appear.

  Usb detects the dvd player and my external hard drive, but does not detect my hard drive. I tried to disconnect the external hard drive, but still, it does not detect my hard drive. The drive letter is E: and pen usb H: external drive letter is F: HELP!

  When I try to send files to it in "send to" my hard drive does not appear

  What hard drive, external or internal? Normally only removable devices appear in the mailing list.

  You could use copy and paste instead, or see the following article...

  http://support.Microsoft.com/kb/310270

  .. how .to add items to send it to the list.

  Tricky

• My drive external hard usb does not appear after login

  Hi could someone help because I bought a disc external hard usb and when I plug it in it does not appear on my laptop at all and ive tried troubleshooting and also right-click on computer in going on the management and also clicking on disk management, but it doesn't appears not on there also could someone help please thank you

  Hello Gabriel,

  Thanks for posting your question on the forum of the Microsoft community.

  I would like to know some information about the problem so that we can help you better.

  1. What is the brand and model of your laptop?
  2 have you tried to connect the player to another computer?

  I appreciate your efforts to resolve the issue.

  This problem can occur for the following reasons:

  -The USB driver is maybe damaged.
  -Corrupted registry keys can be the cause of problems with the connection to your external hard drive.

  I would suggest trying the following methods and check if it helps.

  Method 1:
  Run this Microsoft fixit and check.
  Reference:
  Hardware devices do not work or are not detected in Windows
  http://support.Microsoft.com/mats/hardware_device_problems

  If this does not help, then use method 2.

  Method 2:
  Please use the suggestions contained in this Microsoft Knowledge base article and check the issue.
  Reference:
  My drive does not appear in Windows Explorer
  http://support.Microsoft.com/kb/330140

  Note: Serious problems can occur if you modify the registry incorrectly. Therefore, make sure that you proceed with caution. For added protection, back up the registry before you edit it. Then you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click on the number below to view the article in the Microsoft Knowledge Base:
  http://Windows.Microsoft.com/en-us/Windows/back-up-registry

  I hope this information helps.

  Please let us know if you need more help.

  Thank you

• Seagate 2 TB external hard drive does not register

  I almost always took care to disconnect the drive safely, and continued to work well when he is accidentally unplugged (only happened 3 - 4 times). Today he did not appear in the office or in the finder, the responses in this thread, external HARD drive Seagate will appear not in place were a little helpful but did not fix my problem. Here are some of the facts of the case, somehow:

  • I use a 2012 MacBook Pro running El Capitan with a 1 TB hard drive (this was added later when the original drive has failed)
  • External hard disk was used to transfer large files a bit to a laptop running Windows 8 and was not ejected safely from this computer
  • The reader is displayed correctly on other MacBooks (tested today) and all files are in order.
  • The drive appears in the report of the system but does not appear in the disk utility.
  • The drive does not appear in the Seagate dashboard that was installed when the car was purchased.
  • The drive has two partitions: one for Time Machine and the other to the format to work on Mac and Windows to store normal files.
  • My MacBook has been impossible to open a .dmg file today, unconnected with. I do not have this issue.

  I'd appreciate any help you can give. Thank you!

  Riley G. says:

  I almost always took care to disconnect the drive safely, and continued to work well when he is accidentally unplugged (only happened 3 - 4 times). Today he did not appear in the office or in the finder, the responses in this thread, external HARD drive Seagate will appear not in place were a little helpful but did not fix my problem. Here are some of the facts of the case, somehow:

  • I use a 2012 MacBook Pro running El Capitan with a 1 TB hard drive (this was added later when the original drive has failed)
  • External hard disk was used to transfer large files a bit to a laptop running Windows 8 and was not ejected safely from this computer
  • The reader is displayed correctly on other MacBooks (tested today) and all files are in order.
  • The drive appears in the report of the system but does not appear in the disk utility.
  • The drive does not appear in the Seagate dashboard that was installed when the car was purchased.
  • The drive has two partitions: one for Time Machine and the other to the format to work on Mac and Windows to store normal files.
  • My MacBook has been impossible to open a .dmg file today, unconnected with. I do not have this issue.

  If it shows in disk utility > file >Mount

  
  

• New hard drive does not appear in the disk utility

  I am installing a new hard drive in my late 2011 13 "MacBook Pro. I started using apple's online retrieval system and went to disk utility. I tried to format the drive, but he is stuck saying "remove disc" for about a half hour, and then I had a rotation beach ball and could not move the cursor. I restarted the computer and now the drive does not appear in the disk utility. Any help is appreciated as I have no idea where to go from here.

  Thank you.

  You will may be turned off and check that your hard drive is correctly positioned with all the screws tight.

• Canvio Plus 2.5 "1 TB external HARD drive does not work with USB 3.0

  I've had this drive for about a month.

  I am on Windows 7

  I can only operate by connecting to USB 2.0 ports. It is then visible in 'My Computer'.

  If I connect to USB 3.0, it turns on the case but does not appear in 'My Computer'.

  I tried it on all my USB ports 3.0 - up on one and two in the back of my case.

  I checked my BIOS and USB 3.0 is enabled.

  I tried to follow the suggestions in the user manual, but the drive does not appear in the management of so connected devices on USB 3.0, but it does when connected in USB 2.0.

  Any ideas?

  Hello

  As much as I know the Windows 7 system requires installation of additional USB 3.0 driver.

  Many laptops and computers use USB 3.0 driver that was released by Intel... it is because of Intel chipset...

  I guess that USB 3.0 is already installed, but probably you need to update the driver at least to the newest version...

• External hard drive does not

  I have a Seagate external hard drive purchased from Apple and placed many files, now it does not appear on my MacPro? How can I see the files backed up? Or how do I fix this?

  Contact Seagate technical support for help with their product. Meanwhile, you might try to connect to a different port, cable and repair the disk with disk utility.

  Repair the disk for El Capitan

  1. Restart the computer and after the chime hold down the command and R until the Utility Menu appears.
  2. Disk utility and click on the continue button.
  3. Then select layouts withdrawal (usually Macintosh HD) entry of the volume of the list to one side.
  4. Click the first aid tab on the toolbar and wait for the fact button to activate. Click it, and then quit disk utility.
  5. Select restart from the Apple menu.

• Toshiba Canvio Basics HARD drive does not appear in my computer

  Hello

  I have a HDTB110AK3BA - Toshiba 1 TB Canvio Plus Portable Hard Drive for storage 3.0 Basics and the computer will allow it to connect, but it does not appear in my computer / pc is in Device Manager thought but not my pc

  Please help and Windows 7 or windows 8.1 PC do the same thing.

  Hello

  I found the description of the product of this external HARD disk:

  Product features:
  • USB 3.0 - powered portable add-on storage.
  • Voltage of bus capable USB, no need for AC adapter.
  • Easy to use with no software to install.
  • Adapts to large digital files with spacious storage capacity.
  • Protect your drive (internal shock sensor and ramp loading technology).

  Specifications
  • Capacity: 1.0 TB
  • Interface: USB 3.0
  • Transfer rate: up to 5 Gb/s
  • Speed: 5 400 rpm
  • Average access time: 12ms
  • Cache buffer: 8 MB

  It is a HARD USB 3.0 drive. No doubt the HARD drive is not recognized correctly in windows exploerer due to the low power.
  The USB 2.0 port common feeds only 500mA. The USB 3.0 device must be able to 900mA.
  Therefore, it would be advisable to connect this 2 ports USB 2.0 HARD drive with a USB Y cable

• hard drive does not appear el capıtan

  Hello. First of all, I must say that I am not good in English. But I'll try my best to explain what my problem is.

  MacBook Pro OS X EL CAPITAN series: 10.11.2

  I have a hard drive which called WD My passport 500 GB. When ı connect to my mac. I get my password to WD unlocker. Its does not appear on the desktop. It shows the utility disc, but as a transparent. Its gives no information on the hard disk, as applications 0 KB, photos etc, 0 KB.

  I tried first aid button. It said first aid was fallen I tried to connect the Desktop button. He dıd not happen. It is just to stay there as a transparent. I closed and open my mac again. I wanted to be sure that my hard drive is broken or not. I tried with another computer which is windows. He worked there. My disc format is MS - DOT (FAT) but ı have same problem. Can you help me to fıx it. I have very important files. Thank you

  Best account.

  I'm not 100% sure, but I think the problem is that you have installed the WD (WD Unlocker) software. On a Mac, you should not install all software 'smart' to manage external dives.

• Hard drive does not appear in the preferences?

  Hello

  I have an external hard drive that I want to use as the scratch disk in photoshop, but it does not appear when I open preferences > performance? My other two hard drives that are connected and mac HD appear well?

  This external drive is properly formatted as a Mac OS Extended ?  It should not be formatted as logged, but it MUST be Mac OS extended.

• External hard drive does not allow me to backup large video files

  Hi - I wonder if anyone can tell me why the Toshiba 1 TB 3.5 "external hard drive I recently bought does not allow me to backup large video files from my PC.
  The files are located in the region of 5 to 10 GB and when I try to save these I get the message that they are too big for the destination.

  Any help would be appreciated. Thank you.

  Do you want to just copy/move these files from your PC to the external HARD drive?