Wd internal hard drive not recognized mac

The drive itself could have failed, the partition on the drive may be damaged, the data cable may no longer be good, or the drive may no longer be getting enough power to fully spin up. It's always best to start with the most simple possible causes when troubleshooting. Follow the steps below in order to eliminate the common simple issues: Sometimes, surge protectors diminish the power being supplied as more devices are added to them.

If the drive is connected to a laptop docking station. The laptop docking station may not be supplying enough power to the drive.

Try connecting the drive directly to the USB port on the laptop. Try connecting the drive to a different computer If the alternate computer can see and access the drive, the primary or other computers USB port may not provide enough power for the external drive Power from USB ports can vary. I was using my external hard drive for some time and now a drive icon does not appear on my Mac Desktop or in Finder. As a result, the data on the drive can no longer be accessed.

There could be a few reasons why the drive is not showing up in Finder, or the Mac Desktop. Please rate the helpfulness of this answer. Select your Language Language. Always connect the drive directly to the computer prior to testing. Click here for Instructions instructions will appear below this table.

Windows Network Attached Storage (NAS) Troubleshooting

If after doing this the drive does not spin up at all, then either the drive or the power adapter has failed. The power adapter will need to be replaced to proceed with the troubleshooting. If after replacing the power adapter, the drive still doesn't spin up, then the drive needs to be replaced. Links for data recovery and warranty replacement below. If there is data on the drive that is needed, do not reformat the drive.

External Drive Troubleshooting – Mac

Data recovery will need to be performed on the drive, before reformatting the drive. With a damaged partition, there is data recovery software that may restore the data. Verious programs can be found by searching online. Click here for Instructions. Temporarily disable any and all computer Firewalls, Malware, Anti-Virus, Internet Security and End Point Protection software that may be installed on the computer and or network that could prevent the discovery of a My Cloud on the network.

Ensure the following Windows Services are running and set to Automatic. Please follow the steps outlined below this list for instructions on how to make changes if needed.


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If the solutions above have not resolved the issue, please reset the My Cloud. To replace the defective or damaged drive under warranty, please check the drive's warranty If the drive is in warranty, Create an Online RMA. If data recovery is required, please contact one of our preferred data recovery partners or a data recovery company of your choosing.


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  8. Return to Top. Run App Store and check Updates to ensure your computer is up to date. Ensure the computer is set to allow sharing.

    Internal drives do not come preformatted and may need to be initialized. Please see the answers below for assistance formatting your drive:.

    WD external drive is not seen by Windows or Mac and data on the drive is inaccessible | WD Support

    After initializing and formatting, internal drives should automatically be seen by the operating system. If the drive does not appear, please follow the instructions below:. If the drive is not seen by Disk Management or will not initialize. Internal drives should automatically be seen by the system. If the drive is not seen, follow the solutions below to assist in troubleshooting the drive. If the drive does not power on, or is not spinning, the unit could be damaged.

    A password protected locked drive will not show up as a monted volume. A USB cable may work with one computer but not another. Obtaining a high-quality replacement or trying a different USB cable may resolve your issue.


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    If the alternate computer can see and access the drive, the primary or other computers USB port may not provide enough power for the external drive. Connect the drive to a different computer. If the computer can see and mount the drive, check the drive for errors. Please follow the steps below for assistance. Check if the drive can be seen on USB 2. If the drive can be seen on a USB 2. Please refer to your motherboard manual or contact your PC manufacture to update the hardware drivers.

    External drives should automatically be seen by the operating system. If the drive is not seen, follow the solutions below to assist in troubleshooting your external drive issue. In some cases, an external drive formatted by one computer may not be seen by a different computer. For example: Please follow the steps below if the drive was originally formatted on a different computer:. In case the answer did not answer your question, you can always visit the WD Community for help from WD users. Return to WDC. Answer ID Please select the product type for the operating system from the table above.

    Click on Start Windows logo at the bottom-left of the screen Type services. Right-click the service to be edited and select Properties Select Automatic from the Startup type: Verify the My Cloud is connected to the same router or network as the computer If using two routers, ensure the My Cloud and computer are connected to the router closest to the internet connection Disconnect any USB devices connected to the My Cloud Restart the network router Check that both the power cord and network cable are securely plugged in on both ends Verify the original power adapter or an authorized replacement is being used on the My Cloud Please see Answer ID To reset the My Cloud, please refer to Answer ID How to reset a My Cloud device Defective or Damaged Drive - Warranty Replacement To replace the defective or damaged drive under warranty, please check the drive's warranty If the drive is in warranty, Create an Online RMA Data Recovery Service If data recovery is required, please contact one of our preferred data recovery partners or a data recovery company of your choosing.