Portable external hard drive (500gb) not recognized on computer
I have been using a portable hard drive to backup all my files for some time. I plug it in now and the led light briefly flashes and then , nothing. Computer does not recognize it anymore. I really need these files! any suggestions?
Oms2208 wrote:
I have been using a portable hard drive to backup all my files for some time. I plug it in now and the led light briefly flashes and then , nothing. Computer does not recognize it anymore. I really need these files! any suggestions?
what computer? please provide full model number. it is printed on back
L305-S5955, T9300 Intel Core 2 Duo, 4GB RAM, 60GB SSD, Win 7 Ultimate 64-bit
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I recently purchased the 500GB Toshiba-branded external hard drive in blue from my local Wal-Mart. It has been working fine for the past few months, but when I plugged it into my computer this morning, it didn't light up the LED and I couldn't feel the disk drive spinning as normal.
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JustinHi
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Message was edited by: macbig -
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My external hard drive suddenly not recognized (retina macbook pro)
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1/18/14 8:53:51.000 AM kernel[0]: USBMSC Identifier (non-unique): 012345678933 0x152d 0x539 0x1302, 3
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1/18/14 8:57:13.000 AM kernel[0]: MacAuthEvent en0 Auth result for: 10:bf:48:3d:cb:03 Auth request tx failed
PLEASE HELP ME!It is formatted for both PC and Mac
I have tried finding it in Disk Utility, no dice...
Tried both USB Ports
And a reboot is still unsuccessful.. -
My external hard drive has been repeatedly ejected improperly and now it is not displaying on my computer, not even in disk utility. How do I re-mount this external hard drive? In the past when this has happened, all I had to do was go to Disk Utility or use DiskWarrior to fix the issue but now it won't even show up in either of these apps.
Any help would be appreciated
2008 MacBook Pro 10.9.3, WD My Studio 1 TB External HDFrom 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. -
I'm not completely tech savvy, but I'm having troubles with my external memory & time machine. I'm a student, and thus its very important to me to be able to back up my computer.
I wanted to back up my Time Machine the other day. I clicked the icon at the top of the page (beside the battery icon, etc.) and the message "The backup disk is not available". I have a 500GB Seagate passport (ie: http://www.bestbuy.com/site/Seagate---FreeAgent-GoFlex-500GB-External-USB-2.0-Po rtable-Hard-Drive---Silver/9929098.p?id=1218196478444&skuId=9929098)
My macbook pro is version 10.7.5 Mac OS X Lion. My external memory is only about a year old. It hasn't been dropped or anything; it permanently sits secured to my desk.
What appears when I click "Repair Disk":
Verify and Repair volume “Time Machine Backups”
Checking file systemChecking Journaled HFS Plus volume.
Detected a case-sensitive volume.
Checking extents overflow file.
Checking catalog file.
Incorrect block count for file shutdown_time
(It should be 1 instead of 0)
Invalid node structure
Rebuilding catalog B-tree.
The volume Time Machine Backups could not be repaired.
Volume repair complete.Updating boot support partitions for the volume as required.Error: Disk Utility can’t repair this disk. Back up as many of your files as possible, reformat the disk, and restore your backed-up files.
After clicking "Repair Disk" this message pops up: "Disk Utility Stopped Repairing 'Time Machine Backups' Disk utility can't repair this disk. Back up as many as your files as possible, reformat the disk, and restore your backed-up files."
I don't want to wipe my memory on my external disk just in case the disk doesn't restore (as I do not have another disk to back up my computer on to).
What is going on? Why is this happening out of the blue? How can I fix this?Sounds like it either has, or is about to die.
If you don't need anything off the old drive, then yes, replace it immediately with something a little more reolaable. I use WD Caviar Black personally. But anything that has a known low failure rate. -
Please help me find a solution to my new MacBook Pro not recognizing my hard drives. Yes, thats two hard drives I have that don't seem to work on this computer but both work on my older MacBook and many other computers.
It is formatted for both PC and Mac
I have tried finding it in Disk Utility, no dice...
Tried both USB Ports
And a reboot is still unsuccessful..
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