1 TB usb external hard drive is not when plugged again macbook air

Similar Questions

• USB external hard drive is not accessible

  Dear all,

  I just bought a USB hard drive external Toshiba and cannot access it.

  I have the windows operating system ME. I followed the procedure of installation to the letter and has tried to down load (and felt successfully) additional drivers for me. Yet I can still access the drive.

  Someone at - it ideas?

  Hello

  I guess another external USB devices working properly on your device.
  Have you checked the Device Manager and the properties of USB port?
  Check if you can find the energy saving option and disable it.

  Please try to connect the HARD drive on all USB ports. Perhaps, we have a failure.
  You can also try unplugging other USB devices and connect only the USB HDD

• External hard drive will not mount after the update of the Sierra

  Hi, I have an a Segate 1 TB external hard drive that I have with my MacBook Air. After upgrading to Mac OS Sierra, he refused to climb and is therefore invisible in the Finder. Disk utility detects the drive in NTFS initialized and said that all the space has been used. I tried to mount it first through disk utility, but it did nothing. Then I tried via terminal, but he returns "failed to mount. It worked fine before and also works very well on a MacBook Pro running Yosemite. It may be nothing to do with the player, as all files are intact when it is connected to the other Mac. Also, I restarted in Mac utilities and run from there disk utility, and it detected the drive, mounted and fully initialized, with the right amount of space being exhausted.

  I am looking for a solution that does not copy the files off and reformatting if possible, but I'll give it a go, if it comes to that. Thank you very much.

  Most likely your Seagate drivers are not updated.

  NTFS is most likely the culprit here.

  Go to the Seagate site and download and install the latest drivers for your drive and NTFS.

  You can start here... http://knowledge.seagate.com/articles/en_US/FAQ/007770en?language=en_US & key = ka03 A000000tzbeQAA & k = n & wwwlocale = en - us

  Hope this helps, Greg

• Satellite 1800-712 does not recognize my USB external HARD drive

  Hello

  I would really appreciate the help. I own a satellite 1800-712. I have receently bought a usb external hard drive for some extra memory (IE Toshiba MK4026GAX USB Device)

  When I connect it to my usb port it records any with the computer. The green light so there is power to the hard drive. The usb ports recognized of other fine features (a modem and memory stick)

  I tried the external hard drive on a desktop pc and it works fine.

  I have downloaded all windows xp service pack updates and updated my bios. Don't know what to do now.

  Please help and thank you in advance!

  Hello

  Although sometimes, I know that the OS is not able to recognize the external USB device, because the device external USB (HDD) consumes more energy than the 500mA.
  The USB ports provide 500mA power and if the device needs more power so it s is not possible for the Windows operating system to recognize the external device.
  You have an external power supply for the USB HDD? You should use it.

  Good bye

• Computer laptop (Vista) does not take account any new working USB external hard drive

  Hello, I'm under the latest version of Windows Vista Edition Home Premium on a Dell XPS M1210 and spin in the problems with the connection of my second USB external hard drive. In other words, when I plug the drive (a Seagate expansion 1 TB), nothing happens. Literally nothing, no notification of installation of the driver, no sound is played stating that the system recognized the device, no new entry in post working or disk management. I connected this drive on another computer running Windows 7 and it worked without a problem, so I do not suspect the problem to lie in the hard drive, but with my computer. My other external hard drive USB, a Maxtor Basics Portable 250 GB, works perfectly, but there more than two years. I bought the 1 TB Seagate as a backup and an upgrade, but I plan to go back now that there is nothing more than a big black Clipboard with a green LED clear too much room. What can I do about it?

  Hello
   
  Most likely, there is not enough power for the USB port of your machine to the external device do recognize. As a test I would have you test the issue on another USB plug.
   
  I recommend you contact you either OEM (Original Equipment Manufacturer) or the manufacturer of the motherboard if it is a machine of casting House and get the latest chipset drivers for your motherboard.
   
  Updated a hardware driver that is not working properly
  http://Windows.Microsoft.com/en-us/Windows-Vista/update-a-driver-for-hardware-that-isn ' t-work correctly
   
  Aziz Nadeem - Microsoft technical support.

  [If this post was helpful, please click the button "Vote as helpful" (green triangle). If it can help solve your problem, click on the button 'Propose as answer' or 'mark as answer '. [By proposing / marking a post as answer or useful you help others find the answer more quickly.]

• 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.

• IPhoto on the external hard drive will not launch despite the force quit and relaunch several times. Can someone help me?

  I have a MacBook from 2008. 4 years ago I moved my iPhoto on an external hard drive. I have thousands if photos on it. IPhoto on the external hard drive will not launch despite the force quit and relaunch several times. Can someone help me?

  < re-titled by host >

  I moved my iPhoto on an external hard drive.

  Did you move the iPhoto library for the external hard drive or the iPhoto application, or both?

  How is formatted the external hard drive? Is the file system on the drive Mac OS extended (journaled) or other system files?  Is the drive directly connected by USB or similar, or is it a SIN?

  IPhoto on the external hard drive will not launch despite the force quit and relaunch several times.

  I don't understand - if you force quit smoking, launches the application, or you can not force it quit?

  IPhoto is suspended without doing anything, when you launch?

  What version of iPhoto does? And what version of Mac OS X?

• 250 GB USB external hard drive is compatible with Mac OS x on an iBook G4?

  Hello

  I just bought a Toshiba 250 GB Usb external hard drive because the seller advised me telling me that it works in my iBook G4 Mac OSX computer.

  I made it and I see it on my desktop with a folder called System Volume Information and 2.32 GB available.

  I tried to copy a file and I got a message saying that the disk is not editable.

  Where can I find the instructions to initialize if it's compatible?

  Thanks in advance,

  Joan

  Post edited by: jinglada

  Post edited by: jinglada

  Hello

  I'm not sure on this subject, but maybe you have to format it.
  Are there issues listed in the Device Manager?

  Good bye

• Seagate FreeAgent GoFlex USB external hard drive problem

  I have a Seagate USB external hard drive. It is loaded with all my pictures and music. I can not open. I did in the past without problem.  It is a Seagate FreeAgent GoFlex. It says that I have the drivers updated. I've started and restarted. uninstalled and installed etc. It's also almost if there is nothing on the disc. When I plug it into the USB port it will not appear in the my computer tab, however, it shows in the toolbar at the bottom as installed but with nothing on it. When I run the troubleshooter, it says that the problem can not be detected, but it also says that the device is functioning properly. I do not know because I can not the specifics to fill. Y at - it somewhere that I can take this drive to see if someone can see if my files are always about this and that so they can transfer to another drive? Help, please!

  [Moved from comments]

  Hi Philippe,.

  Welcome to the Microsoft Community and thank you for the post about it

  It seems that when you connect an external hard drive Seagate USB to your computer, there is no indication in the drive. I appreciate the action that you tried to solve the problem.

  I would like to know the following information.

  (1) what version of Windows is currently installed on your computer?
  (2) have you tried to connect the hard drive to other USB ports?
  (3) you are able to use other USB devices?

  I suggest you to connect the hard drive to another computer and check.

  Your answers are important to us, please write to us with the requested information so that we can help more.

• External hard drive is not recognized

  My external hard drive is not recognized by windows, the led lights up but no display on 'my computer '.

  Try it on another computer, if it doesn't, it could be a bad cable or hard drive box. Use a different cable or an enclosure.

  If it works on another computer, on your computer check the disk, if it is displayed in computer management. In Explorer, right click on "Computer", click 'manage '. Under computer management, storage, click on "disk management". If it is showing a right click on it, click on «Change drive letter and path...» ", click the"Edit"button and then assign a drive letter.

  Or if the reader is displayed, you can check in the Device Manager. In the device under Universal Serial Bus controllers Manager looking for the drive generally a mass storage device, right-click on it, uninstall and then restart. If does not uninstall everything under USB controllers, then restart your computer.

• Response speed - USB external hard drive

  Hello

  I have W7 Professional (32 bit) installed on an Acer Ferrari 5000 with 4 GB of RAM. I have a 1 TB WD My Book USB external hard drive connected via USB.

  When I access the drive to play an Explorer of W7 film shows my folder & first screen load files instantly, but then the green progress under the full path bar direcory slowly starts to move across the screen and may take up to 3 minutes to stop. Durning his time my pc performace Marc everything stop. The video load but Windows Media Watch does not respond and the hourglass (or a circle in W7) shows the application as it is busy. Finally, video begins to play but jumps several images at once, even if the sound is fine. After about a minute the video started playing at double speed, befire the entire process repeats itself until it catches up with the sound and the video will play very well for about 10 minutes.

  Videos are not damaged (I can play my portable hard drive very well), the device signals healthy in the WD diagnostic tool and the firmare for the device is up to date (on the WD site).

  I see a lot of people in this forum have problems with W7 64 bit, but there is no mention of 32-bit issues. Also there never was problems with the device was detected or is not accessible - gal just access the device. My only job is about from the drive to copy the movie on my laptop and play it from there - which kind of defeated the purpose.

  I left a similar post on the WD website, which so far had no response. Is it a question of W7/USB? Any other ideas would be useful.

  Hello

  I have W7 Professional (32 bit) installed on an Acer Ferrari 5000 with 4 GB of RAM. I have a 1 TB WD My Book USB external hard drive connected via USB.

  When I access the drive to play an Explorer of W7 film shows my folder & first screen load files instantly, but then the green progress under the full path bar direcory slowly starts to move across the screen and may take up to 3 minutes to stop. Durning his time my pc performace Marc everything stop. The video load but Windows Media Watch does not respond and the hourglass (or a circle in W7) shows the application as it is busy. Finally, video begins to play but jumps several images at once, even if the sound is fine. After about a minute the video started playing at double speed, befire the entire process repeats itself until it catches up with the sound and the video will play very well for about 10 minutes.

  Videos are not damaged (I can play my portable hard drive very well), the device signals healthy in the WD diagnostic tool and the firmare for the device is up to date (on the WD site).

  I see a lot of people in this forum have problems with W7 64 bit, but there is no mention of 32-bit issues. Also there never was problems with the device was detected or is not accessible - gal just access the device. My only job is about from the drive to copy the movie on my laptop and play it from there - which kind of defeated the purpose.

  I left a similar post on the WD website, which so far had no response. Is it a question of W7/USB? Any other ideas would be useful.

  Speed on USB hard drives is relatively slow at first. You are looking at maximum read anywhere between 25 and 32MBs speed if the CPU is not do much else at the time. Supported playback mode tend to transfer bog down over time, as the fragmentation of the file. USB is convenient but firewire and eSATA are faster and faster.

• My external hard drive is not recognized anymore

  I have windows 7 I have been using my external hard drive for a very long time.  All of a sudden when I plug in my external drive (free agent) it is nowhere.  The device works on other computers but not my main one more.  I don't know what to do.  Can anyone help?  Thank you

  Hi Pam,.

  Welcome to the Microsoft community!

  The external hard drive is not detected.

  The problem may occur if the drive letter is not affected or the hard drive is not enabled.

  What is the model of the unit?

  To check if the drive letter is affected or if the disk is turned on, I suggest you follow the steps in the site:

  My drive does not appear in the Windows Explorer view http://support.microsoft.com/kb/330140

   

  I hope this helps. If the problem persists, let know us and we would be happy to help you.

• Seagate external hard drive is not recognized in Windows 7

  I have a 1 to Seagate disc ext I used since February 2011, I changed my computer since then and only recently, it does not recognize the drive. I couldn't find any free software to download, and the drive did not come with CD. Please help? Thank you.

  You can also follow step proposed in this link & check if the problem persists:

  Seagate Expansion Portable 500 GB external hard drive does not work on my windows 7

• Seagate: the external hard drive is not displayed in my computer

  My seagate external hard drive does not show in my computer and also the Disk Manager but its shown in Device Manager. help out me. I have a lot of data in it.

  

  

  Nitesh salvation,

  Thanks for posting your question in the Microsoft Community forums.

  I understand from your description you have posted, that the external hard drive is not recognized by the computer of Windows 8.

  Before you continue with the troubleshooting steps, please answer the questions below.

  (1) have you checked with different ports or different computers?

  (2) remember to make changes before this problem?

  (3) you are able to detect the drive in disk management?

  I suggest to follow the steps below and check if the problem persists.

  Method 1: Run the troubleshooter of material and check out la.

  Follow the steps to run the Troubleshooter:

  (a) press the Windows key + C on your keyboard to show the charms.

  (b) type of Troubleshooting , and then click solving problems under settings.

  (c) now, type Hardware Troubleshooter in the option Search .

  (d) click on hardware store to run the troubleshooter.

  If you are able to detect the drive in disk management, I suggest you to assign a letter.

  Method 2: Assign drive letter:

  The disk management.

  To assign a drive letter if it has not already received, click Add, click the letter you want to use, and then click OK.
  To change a drive letter, click on edit, click on assign the following drive letter, click the letter you want to use and then click OK.

  To remove a drive letter, click on remove and then click Yes to confirm that you want to remove.

  You can also check out the article below and follow the instructions.

  Why isn't Windows does not find my device?

  Hope this information was helpful, if you need help, feel free to post. We will be happy to help you.

• I try to use my Time Capsule as external hard drive. But when I look in the Finder, nothing is available for shared devices.

  I have a Macbook air running OS X El Capitan. I try to use my Time Capsule as external hard drive. But when I look in the Finder, nothing is available for shared devices. I don't know if I need to restart the time Capsule or change the wireless setting, etc. ?

  Please advise...

  The TC appears in airport utility? If not then it is probably not part of your network or is lost... upgrade installed you El Capo because there a lot of questions.

  What is the TC plugged into the network by ethernet? And configured properly? Are you to internet via the TC... but can not see his drive... that would be typical?

  Have you set Finder preferences to display the network drives? Apple keeps making it difficult for some unknown reason.

  You actually have to mount the drive TC if it appears under shared... it still may not appear if you double click on it. Under the search box on the top of the right hand you see Connect (As) box, type the name or IP address of the TC in there... Make sure that you save the password from your keychain.

  I try to use my Time Capsule as external hard drive

  For the storage of the files it is fine.

  For the execution of direct files for an application in the Mac, you are very likely to damage or corrupt the file at some point.

  And how do you do backups? Time Machine can't help you... it won't work.

  Backup is crucial, especially if you do things apple say not to do... That is to say move your photos or the iphoto library to the TC and try to use direct from there... expect any day to need a resumption of the library.