Mac Pro :: Flash Drive Not Recognized

May 28, 2012

I am a new MacBookPro user and I really don't know what I am doing . I am having problems with the flash drive. It appears that it is not being recognized.

Info:MacBookPro

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MacBook Pro :: Verbatim USB Flash Drive Stops Being Recognized

Apr 12, 2012

All of a sudden the other day, my Verbatim USB flash drive just stopped being recognized... it had been mounted, a TM backup made to it when all of a sudden I got an error stating that it had been improperly removed... it was like I had yanked it from the USB port.I tried unplugging it, reconnecting, rebooting, moving it to another computer... no luck. it doesn't even show up in Disk Utility Verbatim has agreed to replace it under warranty but I'm wondering if there's anyway that I can mount it again to retrieve the TM backups.

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Software :: USB Flash Drives Not Recognized

Aug 8, 2009

I have a 2008 (2/2008) 24" aluminum imac that is not recognizing certain USB flash drives now. The drive (Sony 8gb) worked before but does not now. When started up with the drive in a USB port, system profiler will find it but disk utilities will not (nor does it appear on my desktop). I have tried all other USB ports in this computer with no results. This drive still works fine on all other macs in the house. This problem is isolated only to flash drives since all other USB accessories still function fine. I recently added a Sandisk imagemate all-in-one card reader to this system and suspect that this might have caused the problem since oddly enough, my Sandisk flash drive still works fine. The only driver I installed with this reader was the application start up button (to launch iphoto).

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OS X Yosemite :: Adobe Flash Player Not Working / Have Uninstalled And Reinstalled Several Times / But Still Not Recognized

Dec 7, 2014

After installation of Yosemite, Adobe Flash Player not working, have uninstalled and re-installed several times, but still not recognized.

Info:
MacBook Pro with Retina display, OS X Yosemite (10.10.1)

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Mac Pro :: Disappearing Drive Not Mounting / Drive Not Recognized Warning

Jan 28, 2010

I have a Western Digital Green 2 TB drive attached to on of the two extra SATA II ports on my 2006 Mac Pro. No problems for over three years using several drives on this port. Today the drive suddenly would not mount and I received a "Drive Not Recognized" warning. In Disk Utility the drive is completely empty without any volume. I also now have a 32-GB "phantom" volume which used my user name - but does not exist. I turned off the computer and put the drive in an external enclosure, which it mounted without difficulty. I am now updating my backup of the drive and ordered a new 2 TB WD Black drive.

Only a few days ago I had the similar problem with a SD card - missing volume contents, a "phantom" 32 GB volume. I actually reformted and erased the SD drive, ran Disk Utility to check it, and put it in another computer - using the same SD card reader - and all the files were there!! Nothing was erased at all. Very strange.

Anyone have any idea WTF is going on? It seems like my motherboard drive controllers are getting flaky. Any way to test it? I have all the usual test programs, but nothing has shown up

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Mac Pro :: Drive Disappearing Suddenly / Drive Not Recognized

Apr 13, 2010

I have a Western Digital Green 2 TB drive attached to on of the two extra SATA II ports on my 2006 Mac Pro. No problems for over three years using several drives on this port. Today the drive suddenly would not mount and I received a "Drive Not Recognized" warning. In Disk Utility the drive is completely empty without any volume. I also now have a 32-GB "phantom" volume which used my user name - but does not exist. I turned off the computer and put the drive in an external enclosure, which it mounted without difficulty. I am now updating my backup of the drive and ordered a new 2 TB WD Black drive.

Only a few days ago I had the similar problem with a SD card - missing volume contents, a "phantom" 32 GB volume. I actually reformted and erased the SD drive, ran Disk Utility to check it, and put it in another computer - using the same SD card reader - and all the files were there!! Nothing was erased at all. Very strange.

Anyone have any idea WTF is going on? It seems like my motherboard drive controllers are getting flaky. Any way to test it? I have all the usual test programs, but nothing has shown up.

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MacBook :: PNY USB Drive Not Recognized?

Jun 18, 2012

I tried doing a few Google searches to find a resolution to this problem, but nothing that came up seemed to work, so I'm throwing this question out there. I recently bought a 16GB PNY metal attache for my  2011 MacBook Pro (OS X). That computer fails to recognize the drive. Here are a few notes: 

1. I tested the drive on a windows vista computer, and that computer recognizes the drive. I can read/write from it on that computer.

2. Neither USB port on my apple is faulty; other USB devices function fine via both ports.

3. I have tried several solutions including:

a) Restarting

b) Powering off, unplugging the power cord, waiting 15 seconds, replugging the cord, and booting up the computer

c) Restarting WITH the drive in the port

d) Leaving the drive in for a while to see if it would eventually recognize it (no results)

e) Reformatting the drive to FAT32 to make sure it's possible for my mac to read/write from it 

Info:
MacBook Pro (13-inch Late 2011), iOS 5.1.1

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MacBook :: USB Drive Not Being Recognized At Boot Up

Dec 17, 2010

So I expanded a bootable .iso image of openSUSEx64 11.3 onto my 16GB USB thumb drive following the steps I found on a website. When I restarted the MacBook with the option key pressed, the USB drive did not appear. Why the USB drive's not being recognized at boot-up? Here is the website I used (option 4): URL

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Hardware :: USB External Drive Not Recognized

Dec 27, 2006

I'm having some troubles with an external enclosure and my sister's new imac. The enclosure I'm using is a Tao Tec 2500 (2.5" drive) IDE --> USB device with the Y-cable. The drive has been formatted to NTFS and has some files on it. As far as I can tell though the version of OSX the new imac is running should support read capability with the file system though. The computer is a latest generation imac (purchased about 12/20/2006) and running a new revision of OSX (about 1.0.4.7 I believe). My problem seems to be the computer simply does not recognize the drive. Disk utility doesn't see it nor the usb manager in system tools. The LED indicator on the drive indicates that it's receiving power and I've tried swapping the usb ports around just to be sure I don't have a bumed port. It simply seems like OSX just doesn't know the drive's there.

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PowerPC :: New Internal Drive Not Recognized?

Mar 10, 2008

I recently went through the very arduous process of replacing the harddrive in my aluminum G4 12" PowerBook. The process was a complete pain in the rear, and I ended up ripping a socket off the motherboard.

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PowerPC :: Hard Drive Not Recognized?

Apr 16, 2009

I have tried troubleshooting, searching this forum, & googling to no avail. I'm hoping someone smarter than me can figure this out.

Short Version:

Purchased this hard drive:

[URL]

and purchased this external enclosure:

[URL]

when I plug it into my macbook, PC, or a powerbook, the disk is not recgonized, I can not get Disk Utility to even recognize that the hard drive exists. I thought it may be a bad drive, so I sent it in to Seagate Warrenty, they sent me a new one and I'm still having the same problem. Does anyone know how I can format the drive or any way I can get it to be recognized?

Longer Version:

My powerbook crashed, so I purchased this HD to replace it. I installed the 1st seagate and when i went to install OSX and said select destination drive, there was none there to select. I was able to repair the original HD so I reinstalled it and went to install OSX and it DID show the drive to install it on, so I don't think that it is the computer/motherboard. Then I sent in for the 2nd seagate, tried getting it to work with the external enclosure and installing internally in the powerbook, etc. nothing seemed to work.

I am wanting to install the new drive in the powerbook as the old drive is on its last leg (but currently works). Every thread i have searched for that was similar, there was no solution that I could use.

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OS X :: Hard Drive Not Recognized By Computer

Dec 28, 2009

I plugged in my hard drive into my Macbook Pro and it wouldn't show up on the desktop. Opened the finder, and it wasn't there either. I went into the disk utility and it was there. So then I thought maybe rebooting the computer would help. Then I plugged it into my friend's Macbook and it showed up no problem. The last time I used it I remember that error appearing where it forces you to shut off the computer. Does that have anything to do with it? I do photography and I have my entire collection on this hard drive, so restoring it is not an option. Like I said, the device was recognized and worked fine on my friend's laptop, just not on mine.

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OS X :: 1TB Hard Drive Stopped Being Recognized

Mar 20, 2010

I've had a 1TB external drive (Samsung Story) working wonderfully as a Time Machine backup for the last month. It had been unplugged for the last couple days, but I plugged it in today to do a back-up. Unfortunately, it wasn't recognized. It stills lights up and makes noises so I don't think it's dead, but no matter which USB port I put I use or how many times I restart, my MacBook won't recognize it anymore.

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OS X :: WD Hard Drive Suddenly Not Recognized?

May 8, 2010

Just a few seconds ago, my WD Mybook external HD wasn't recognised. The sign came up saying that you should eject your drives before disconnecting them (although I didn't disconnect it). So I unplug it and try to plug it back in and it isn't recognised. The hard drive is powered (I can hear it spinning), I tried switching firewire cables, I tried it with another computer, and it isn't recognised

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MacBook Pro :: New Hard Drive Still Won't Be Recognized

Mar 8, 2012

I've been having several problems with my mid-2009 MacBook Pro; 2 minute beachballs and failure to startup. So I've purchased a new new WD Scorpio Black thinking it was a HD issue, but after replacing my old HD with the WD, Disk Utility wouldn't recognize the new drive. So I searched around and found out that Hard Drive Cable failure is an issue on this certain MacBook. So I ordered a new Hard Drive cable and just replaced that today, thinking that my new HD would be recognized. However after going into Disk Utility via the OS X Install DVD, my new Hard Drive was still not recognized.

Info:MacBookPro

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MacBook Pro :: New Hard Drive Not Recognized

May 27, 2012

Have a mid 2009 13" 2.26 dual core. Started getting flashing folder with question mark icon and found hard drive failed. Tried two different drives, WD Scorpio Black 750GB 3GB/s 7200rpm and Seagate 500GB 3GB/s 7200rpm. Neither is recognized by the computer. What next? And yes I have the updated firmware.

Info:
MacBook
Pro, Mac OS X (10.6.5)

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Power Mac G5 :: External Hard Drive Not Recognized

Oct 9, 2007

I am a photographer. I use 4 X 1TB LaCie external hard drives to store my digital images. 2 as masters for different business segments and 2 as their back-ups. They are daisy-chained using Firewire 800. Recently my G5 has stopped recognizing one of the drives. Is there any way to get my machine to re-recognize the missing drive? I have rewired the four drives to see if there was a problem with the cabling, but this does not appear to be the case. I am coming up to the 1 year warranty period on this drive and need to get it back to LaCie if there is no other solution.

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MacBook :: External Hard Drive Not Recognized

Nov 1, 2008

I've got an external hard drive. It's a "My BooK" Western Digital 500 Gb that uses both USB and Firewire. I've used it many times successfully with my MacBook but today, my Macbook will not recognize it.

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MacBook :: Trying To Install New Hard Drive - Not Recognized

Jul 7, 2009

I have a first gen white macbook core duo. I am trying to install a new 320GB Seagate HDD in my laptop to replace the 60Gb drive. I installed it but I can't get the OS to recognize the Hard disk when it is installed in the computer. I have no problems when it is installed in an external case. I have booted off the Leopard disk but it does not show a drive available to format, I booted off the original drive in the external case and the disk utilities does not show another drive attached. If I put the 320GB drive in the external enclosure, disk utilities recognizes it right away. I have formatted it with GUID format but it doesn't work when installed directly in the macbook.

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MacBook :: CD / DVD Drive Spins But Disc Not Recognized

Dec 21, 2009

Here is what is going on with my MacBook:
-If I insert a music CD, the CD drive spins it and makes noise. It does not open iTunes or even show it on the desktop. It is not recognized. Then the computer ejects the disc.
-My iDVD software seems to have taken a crap. I am prompted every time the computer boots up that iDVD has quit unexpectedly and gives the options of "relaunch" "cancel" or "report to Apple".
-This is the weird part: I was going to reinstall Leopard OSX from the disc. The computer reads the discs and the "X" screen pops up. I then try to go through to reinstall the software as it tells me that it will restart.

It restarts and then ejects the disc when the Apple logo pops up. Therefore I cannot reinstall the software. Does this sound like a software or hardware problem? Can the fact that iDVD is not working mean that my CD's would not play? Does anyone have any ideas on what I can do here? I am desperate and would like to know what other approach I should take before I put a new drive in.

White MacBook, 2yrs old. 500gbhd, 4g RAM.

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OS X :: Mac Crashed Repeatedly / Hard Drive Not Recognized

Dec 30, 2009

I have a 2007/2008 MBP 2.4Ghz running 10.6.2. I was having repeated hard crashes
due, I think, to some stupid firefox mods I made a few days ago. Every 1-3 hours, the system would freeze, make that crackly thinking really hard noise, spin the beach ball, and wait for me to hard restart. This happens 3 or 4 times today, and on the last crash, the system hangs on restart. Grey screen, spinning grey circle of circles for 10 or so minutes. I can't wait any longer, so I hard restart again, and again the system hangs indefinitely. Now I start to get a bit worried. I boot from the Snow Leopard install disk and open disk utility. From there, I attempted to verify permissions, but the process hangs with one minute remaining for at least 20 minutes. A crash while trying to repair a crash. Great.

So I hard restart AGAIN, and open disk utility, this time selecting repair disk. The utility detects a few errors, supposedly corrects them, then hangs for about 2 minutes, finally culminating in the hard drive disappearing act. The bar looks complete, but the hard drive is gone from the list! GONE! I can't select it from the sidebar in Disk Utility. It doesn't show up in the Startup Disk menu. The only drive I can access is the dvd drive with the Leopard disk. I opened System Profiler and looked under Serial-ATA, and found the only entry was for an Intel ICH8-M ACHI. I don't remember that being there. It used to be a Matsushita drive. Can't find anything on google, and I want to do whatever I can before giving up hope on all my data. Haven't made a backup in a while.

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OS X :: Formatted USB Drive As Free Space - Not Recognized

Jun 30, 2010

I've been having difficulties using my USB stick on windows computers, even though I formatted it as FAT (ed. I realized I had to use the Windows partition scheme and have resolved this issue). I've tried lots of things and admit that I got fed up and saw a new option today "format as free space" in disk utility.

Now the drive isn't recognized as being present at all in Disk Utility, /Volumes, and is not showing up with "diskutil list" in Terminal. I mainly want to know if it's possible to get the system to recognize that a drive is plugged in so I can reformat it with ANY filesystem. I'm pretty green to the underworkings of the mac.

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Hardware :: IBook Hard Drive Not Recognized?

Dec 16, 2007

I recently installed 10.5 onto my iBook G4 (933Hz 640MB) using target mode from my Mac Mini. I couldn't use the Leopard DVD install disc as it has got stuck in the Disc drive of the iBook, even though the laptop was working fine with 10.4.

When I restart it I now get a flashing question mark, i.e. the iBook can't find the hard drive. I can't use Disk Warrior as I can't use the internal disc drive.

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Software :: Firewire External Drive Not Recognized?

Apr 24, 2008

After one of the security updates to OSX 10.3 my OWC Neptune firewire external harddrive quit showing up on the desktop and I can't find a way to access it.

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MacBook Pro :: External Hard Drive Is Not Recognized?

Apr 9, 2012

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.

Info:
MacBook, Mac OS X (10.5.8)

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Intel Mac :: External Hard Drive Not Recognized

Apr 11, 2012

I recently invested in a refurbished iMac which is running Mac OS X Lion 10.7.3 (11D2001).

I am trying to access my existing external hard drive through the machine and although this lights up when plugged in, it doesn't appear in the finder.  Other Memory sticks work without problem.

It is a Western Digital Elements 160GB Portable Hard Drive that has worked and continues to do so without problem on my ancient iBook G4.

Info:
iMac (21.5-inch Mid 2011), Mac OS X (10.7.3)

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OS X V10.7 Lion :: Garmin Device Not Recognized As USB-drive?

May 30, 2012

when I connect my Garmin Edge 705 to the MacBook Pro (Mac OS X 10.7.4) the device won't mount as USB-drive instead it just goes into charging mode. This wasn't the case earlier with the MacBook Pro (>10.7.3) and this isn't the case with a MacBook running still on Snow Leopard. 

Therefore I assume that something has changed in the Mac OS X 10.7.4 particularly in the Finder?

Info:
MacBook Pro, Mac OS X (10.7.4), MacBook, Mac OS X (10.6.8)

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OS X Mavericks :: External Hard Drive Not Recognized

Jun 1, 2014

I have used a Samsung HX 1Tb external hard drive under OSX Snow Leopard with absolutely no problem. Since I upgraded to the free (improved?!?) OSX Mavericks my Macbook Pro cannot "see" my hard drive. All I get when I plug it in is the following message -

my MacBook thinks that the hard drive is formatted for windows - but why should it work OK under Snow Leopard but not with Mavericks? I don't want to simply reformat the external drive because I'll lose all the files stored on it.Is there suitable software/Apps that I can use to let my Mac access this external hard drive.Incidentally my partners new Macbook Air can still read this hard drive. 

Info:
MacBook Pro (15-inch Mid 2010), OS X Mavericks (10.9.3)

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IMac (Intel) :: Optical Drive Not Recognized

Jul 2, 2014

I think it started from when i updated from 10.5.8 to 10.9. I had been having trouble reading any disks at all and sat down to try and fix it, when I looked more into it i noticed a few errors that kept popping up. When I insert any disk it reads for a bit and then just ejects. When i try and look for the disk utility there is no optical drive there. 

When i open CDs and DVDs "You can’t open the “CDs & DVDs” preferences pane because it is not available to you at this time. To see this preferences pane, you may need to connect a device to your computer." In system information - disk burning it says "No disc burning device was found. If the device is external, make sure it’s connected and turned on."  When inserting a movie DVD and opening DVD player "A valid DVD drive could not be found [-70012] 

After inserting a DVD it didn't come out. so there is a dvd stuck in there now ... got iMac 27" early 2009 with 2.66ghz 8gb ram and 10.9.4osx 

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MacBook Air :: Clone To 64 GB Flash Drive As A Boot Rescue Drive?

Nov 15, 2010

When I travel I would generally take a small travel drive that is clone of my white MacBook as a rescue drive.Now that I have the MBA I am wondering if I could just clone my 11.6 MBA to a 64 GB flash drive and then if the worst happened I could reverse clone from the flash drive to the MBA.

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