My iMac cannot read my Verbatim external hard drive since I updated to Yosemite today - what can I do?

I updated to Yosemite today and now have no access to my Verbatin external hard drive. My anti virus software - Kaspersky for Mac has also stopped working. I have identical problems on my Macbook Pro.
Does anyone know of fixes for either problem please?

I updated to Yosemite today and now have no access to my Verbatin external hard drive. My anti virus software - Kaspersky for Mac has also stopped working. I have identical problems on my Macbook Pro.
Does anyone know of fixes for either problem please?

Similar Messages

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    Is there a reason why my external hard drive is not being 'seen' by my iMac after the most recent update to the system?

    managed to solve it myself after reading some other information on other forums.
    Powered hard drive and iMac down, plugged hard drive in, turned on iMac, connected hard drive.  Bingo.

  • Can't read external hard drive since security update

    Hi,
    I hope one of you guys can help me with my problem. I have an iMac running 10.6.2 and use an external 1GB hard drive (MyBook Studio I think it's called - connected via Firewire800) for my time machine backups and to store movies.. on two partitions. All used to work fine until I installed the latest security update a few days ago.
    Since then I can't connect to the hard drive anymore. Whenever I boot my Mac I get the message that the disk I inserted can't be read and I get the options to initialise, ignore or eject. When I open disk utility it recognises the hard drive but states it is unformatted (which is not true).
    I plugged the hard drive via USB into my Macbook - same message. I tried repairing the disk permissions on my iMac - no difference. I can't repair any permissions on the external drive as it is all greyed out. Also tried resetting the parameter RAM - no success.
    Any suggestions how I could get back my data on the external drive?
    Thanks for your help!

    If Disk Utility on two different Macs don't recognize anything on the drive, it's in bad shape.
    If you have +Disk Warrior+ (version 4.2 only) or another heavy-duty disk repair app, there's a small chance it might be able to find and repair the file system, but it's highly doubtful.
    I hope you have backups of the movies. If you do, try to completely reformat the disk. Take the time to do a complete erase -- click the Erase tab, then +Security Options,+ then choose +Zero Out Data.+ That will take a long time. If it fails, the disk is toast. If it completes, the drive may be ok to use, but I'm not sure I'd trust my backups to it.
    If you don't have backups of the movies, you need specialized +Data Recovery+ software, or a service that performs the function. It's not cheap, and there are no guarantees.
    The app mentioned here most often is +Data Rescue 3,+ but I haven't used it myself, so can't recommend it over any of the others.
    Some of these have a free "trial mode," that will tell you if there's anything to be recovered, and perhaps recover a single file. For more, you have to pay the $$.
    You'll also need another drive to receive anything it can recover.
    Look for apps or services under +Data Recovery+ via Google, VersionTracker.com, or MacUpdate.com.

  • How do I change the Mac OS Extended (Case-sensitive, Journaled) Format of my Verbatim External Hard Drive

    Good evening.
    I have a Verbatim External Hard Drive, currently being used for my Time Machine back-up on my MacBook (Running Mac OS X Version 10.6.8).
    I also frequently use a normal Windows laptop (Normal 32-bit OS).
    The Hard Drive was formatted to Mac OS Extended (Case-sensitive, Journaled) in order for the MacBook to do the Time Machine back-up.
    How do I change the fromat of the Hard Drive, as i do not need the Time Machine back-up to be done on the Hard Drive anymore, and I NEED to use the external in both PC's.
    Your assistance will be greatly apreciated.

    Open Disk Utility, select the external hard drive, select erase, and format it as FAT32. You'll be able to use it with both Mac and Windows.

  • Trying to copy iPhoto Library to external hard drive for backup.  Error message:  The Finder can't complete the operation because some data in "iPhoto Library" can't be read or written (Error code -36).

    Trying to copy iPhoto Library to external hard drive for backup.  Error message:  The Finder can't complete the operation because some data in "iPhoto Library" can't be read or written (Error code -36).

    That code is
    -36
    ioErr
    I/O error (bummers)
    Make sure the EHD is formatted OS X Extended (journaled) and run Disk Utilty on the EHD and repair the disk.  If that fails to help I'd try the following:
    Using iPhoto Library Manager  to Rebuild Your iPhoto Library
    Download iPhoto Library Manager and launch.
    Click on the Add Library button,                         
    navigate to your Home/Pictures folder and select your iPhoto Library folder.
    Now that the library is listed in the left hand pane of iPLM, click on your library and go to the Library ➙ Rebuild Library menu option
    In the next  window name the new library and select the external HD as the location of the newly rebild library.
    Click on the Create button.
    Note 1: This creates a new library based on the LIbraryData.xml file in the library and will recover Events, Albums, keywords, titles and comments. However, books, calendars, cards and slideshows will be lost.
    Note 2:  Your current library will be left untouched for further attempts at a fix if so desired.
    OT

  • My iMac stopped to recognize an external hard drive. What might be a reason?

    My iMac stopped to recognize an external hard drive. What might be a reason?

    Hi,
    This happens often because the processes that run over the MacOS, but the power was not enough to power your device. Actually this happens with external hard drives on any platform. Sometimes the USB port is not enough or even energizes permissions MacOS fumble.
    When your computer finishes starting up, choose Disk Utility from the Utilities window and select your external drive and click in First Aid tab and repair disk.
    Good Luck,
    Eduardo

  • After trying to change permissions on my computer so others on my network can access files, my external Hard Drive has a lock on it and I can't access files. I've tried repairing permissions, logging in under another Administrator account, using Terminal

    After trying to change permissions on my computer so others on my network can grab files, my external Hard Drive has a lock on it and I can't access files. I've tried repairing permissions, logging in under another Administrator account, using Terminal to fix the problem, downloaded BatChmod but nothing works… Any other suggestions? I have an Imac running OS10.6.8.

    There is suddenly a lock icon on my external backup drive!
    Custom Permissions

  • After upgrading to osx 10.9.3, my external hard drive was not able to mount, but it can be mounted without issue in osx 10.6, how do I solve it? it was formatted by disk utility.

    Hi
    After upgrading to osx 10.9.3, my external hard drive was not able to mount, but it can be mounted without issue in osx 10.6, how do I solve it? it was formatted by disk utility.
    Thanks
    PT

    From the menu bar, select
     ▹ System Preferences ▹ Energy Saver ▹ Power Adapter  
    and uncheck the box labeled Put the hard disk(s) to sleep when possible, if it's checked.
    If the drive has more than one interface (USB, FireWire, Thunderbolt, eSATA), try one of the other interfaces.
    Check that the data cable is securely inserted at both ends.
    Try a different cable.
    If you're connecting the drive through a hub, connect it directly to a built-in port on the Mac.
    If you're connecting it directly, try a different port.
    Disconnect all other devices on the bus, or as many as possible.
    Test the drive with another Mac. Test another drive with this Mac.
    If the drive is bus-powered, but has an AC adapter, connect the adapter.
    Start up in Recovery mode and launch Disk Utility. Is the drive recognized?
    Start up in Safe Mode and test.
    Reset the NVRAM.
    Reset the System Management Controller.
    If the drive doesn't work under any of the above conditions, and if another drive does work with the same Mac, then the drive has failed. You may be able to salvage the mechanism by removing it from the enclosure and installing it in another one, or in a drive dock.

  • External hard drive that stored music has crashed.  How can I safely get my songs from my I Pod back onto computer in a new external drive?

    External hard drive that stored music has crashed.  How can I safely get my songs from my I Pod back onto computer into a new external drive?

    See this older post from another forum member Zevoneer discussing different ways to copy content from your iPod back to your PC.
    https://discussions.apple.com/thread/2452022?start=0&tstart=0
    B-rock

  • I am having issues with my external hard drives since installing Mountain Lion

    I am unable to get my time machine to backup consistently on my external hard drives since installing Mountain Lion. One of my drives seems to have lost all data since installing Mountain Lion. Is this problem cropping up with other folks? BTW, all of my drives are Lacie brand.

    Marzomo wrote:
    One of my drives seems to have lost all data since installing Mountain Lion.
    Do you mean, when you select it to be used for backups, the Preferences window shows "none"?  If so, that's not a problem.  That doesn't get updated until the next backup to that disk is finished. See #B3 in Time Machine - Troubleshooting

  • I want to be able to backup my iPhone 4 to an external hard drive since I don't have enough space on my Windows hard drive, how do I do that?

    I want to be able to backup my iPhone 4 to an external hard drive since I don’t have enough space on my Windows hard drive, how do I do that?

    Go through the below forum with similar issue and follow the process mentioned by "Macjack" in the beginning.
    https://discussions.apple.com/thread/4499820

  • My whole catalogue was nearly lost due to a failed external hard drive. Professional help recovered photos but I can't find my smart tags. Is it possible they were lost on failed drive?

    My whole catalogue was nearly lost due to a failed external hard drive. Professional help recovered photos but I can't find my smart tags. Is it possible they were lost on failed drive?

    Hi,
    In order to recover the tags/albums, etc, you need to have the catalog db. Since currently you only have images, the organization done in the older catalog is probably lost.
    Which version of PSE you have and is there any chance, that you have access to catalog location (default is : %programdata%\adobe\elements organizer\catalogs on Windows and ~/library/app support/adobe/organizer/catalogs on MAC) ?
    Thanks
    Andaleeb

  • Although the window pop up option is deactivated in preferences, I cannot open any in my Macbook Pro since I updated to Yosemite.  Can anyone assist?  Thanks

    Although the window pop up option is deactivated in preferences, I cannot open any in my Macbook Pro since I updated to Yosemite.  Can anyone assist?  Thanks

    Do you have that problem when running in the Firefox SafeMode?
    [http://support.mozilla.com/en-US/kb/Safe+Mode]
    ''Don't select anything right now, just use "Continue in SafeMode."''
    If not, see this:
    [http://support.mozilla.com/en-US/kb/troubleshooting+extensions+and+themes]

  • IPod cannot be synced because external hard drive could not be read

    I moved my music folder to an external hard drive to create space on my laptop, and changed the location under Preferences / Advanced. Since I did this, my iPod trys to automatically sync but gives the error message "The iPoD "[name]" cannot be synced. The disk could not be read from or written to." The external hard drive is on and working. Is there some reason that the iPod will not sync with this external hard drive? What do I need to do to fix it? Thanks, Bill

    First question, since you made
    the change, can you still play your music from within
    iTunes?
    Patrick
    Sorry for the delay in answering as I have been traveling. Yes, I can play music from iTunes. The music is located on my external hard drive. iTunes software is on my laptop, and the music library points to the music folder on my external hard drive.
    Thanks, Bill
    Dell Laptop   Windows XP  

  • I cannot write (only read) on an external hard drive when I'm running Windows on BootCamp.

    I'm running Windows thanks to BootCamp perfectly, but I have a problem. I can open and read files that I have on an external hard drive (HFS+) but I can't create or modify files in it. It's like I don't have permissions. Please, how can I solve this?

    Windows can not write to disks formatted with HFS+ without third party software.
    Available http://www.mediafour.com/products/macdrive
    Allan

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