Mavericks 10.9.4 can't read my external hard drive which worked before the update

My external hard drives worked perfectly (paragon NTFS for Mac) with Mavericks after I updated it to the last version.
One more problem...wi-fi is not steady, connect and disconnect all the time.
Thank you for your help

Does it show up in disk utility?

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Can I connect an external hard drive to one of the ethernet port of the airport extreme and access it from my Mac or PC?

Can I connect an external hard drive to one of the ethernet port of the airport extreme and access it from my Mac or PC?

If this hard drive is part of a NAS device, then yes it should be accessable from either a Mac or PC while connected to the AirPort Extreme Base Station (AEBS) by Ethernet.

Can I reimage an external hard drive that is in the windows NT file format?

can I reimage an external hard drive that is in the windows NT file format?

With WinClone 3.x $20 for Mac or with Windows imaging - built into Windows.
Some like Acronis didn't (may now) work on Macs. Many use a linux CD recovery boot..
You can write to NTFS with a simple NTFS driver. There, I strongly recommend Paragon for OS X
www.paragon-software.com
They also have all the program and Apple Boot Camp support
Image a system or image a hard drive or.... ?

Can I mount my external hard drive which will be compatible with both Mac and Windows?

Hello,
Can I mount my external hard drive which will be compatible with both Mac and Windows? If yes, then please let me know, because I intend to use my hard drive for both Windows and Mac, without losing any file.

Yes. By default, Mac OS X and Windows can read and write drives which are formatted as FAT32 or exFAT; NTFS drives aren't writable from Mac OS X without additional software.
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My time machine back up error and now it says it can not read my external hard drive

I have a MacBook Pro Yosemite ...... I was backing up to a WD Elements external hard drive disk and I was in mid back up and everything was going fine..... then an error and when I went back to it ..... it said it no longer can read my disk? What can i do?

A whole lot about Time Machine for help with TM problems. Also you can select Mac Help from the Finder's Help menu and search for "time machine" to locate articles on how to use TM. See also Mac 101- Time Machine.
Use Disk Utility to repair the TM drive. If that doesn't help, and you don't find help from the above, then erase the drive and start a new TM backup.

Am using 2007 iMac running 10.4.11. Do not wish to upgrade now. Where can I find an external hard drive to work with it? Also need a printer?

I'm using a 20" iMac that I purchased in 2007. It's running OS 10.4.11, and still doing beautifully. But I've got to get serious about upgrading and I don't want to lose the material that's on it.   Purchased an external hard drive about two years ago, copied everything I wanted at that time on to it. When I tried using the h.d. a few days ago it was garbled. Now I see that inside the box it says that it requires OS 10.5+.   Anyone know if there's still a new hard drive out there that would work with 10.4.11?   Can't even find thumb drives to work with my system anymore.   Any ideas would be appreciated.

If I were you I would bite the bullet and upgrade to Snow Leopard. You will still be able to use AppleWorks by installing the Rosetta emulator included in Snow Leopard. And, it's a much better OS version than Tiger.
Upgrading to Snow Leopard
You can purchase Snow Leopard through the Apple Store: Mac OS X 10.6 Snow Leopard - Apple Store (U.S.). The price is $19.99 plus tax. You will be sent physical media by mail after placing your order.
After you install Snow Leopard you will have to download and install the Mac OS X 10.6.8 Update Combo v1.1 to update Snow Leopard to 10.6.8 and give you access to the App Store. Access to the App Store enables you to download Mavericks if your computer meets the requirements.
     Snow Leopard General Requirements
       1. Mac computer with an Intel processor
       2. 1GB of memory
       3. 5GB of available disk space
       4. DVD drive for installation
       5. Some features require a compatible Internet service provider;
           fees may apply.
       6. Some features require Apple’s iCloud services; fees and
           terms apply.
See App Compatibility Table - RoaringApps.

I can´t read my external Hard Drive Anymore

Hi, I just got a new Imac, the slim 27 in. one, I connected an external Hard disk to it and everything fine for the first two / three days. Now It won´t even recognise it, the light on the HD is on but there´s no sign that the computer is reading it. I actually have the same problem with my Mac Book Pro, at first it read my Hard Drive and now it doesn´t recognise it. i did the Hard disk utility and I got nothing.
Please Help!

You can try to do a Intel iMac SMC and PRAM resets several times, if that doesn't work then try another cable. If the new cable doesn't work your EHD may have failed.

Mac is saying it can't read my External Hard Drive

Somehow I have lost the partition on my hard drive due to corruption. The drive supports FAT 32.
When I connect to the Mac, it says that the volumes on the disc cannot be read by Mac. These files were all added to the hard drive using an older mac. I need to be able to connect to the drive and access the files that are already stored on it.
Can anyone help me with this? I am a little lost when it comes to this.
Thanks,
Andrew

An external HD consists of two primary components - the actual drive itself, no different than you might find inside your system and a drive enclosure.
The enclosure provides the interface (USB, Firewire, SCSI, SATA, whatever) and power supply (unless it is a 2.5" bus powered drive) that communicates with your computer's port of the same type.
Mounting is what a UNIX based computer system call recognizing a drive as available. OS X has BSD UNIX at it core, and common UNIX commands are available via the Terminal utility provided with the OS.
If your computer can not recognize the drive and wants to initialize it, and reports the size of the drive correctly, the enclosure is not your problem.
If OTOH, it is not "seeing" the drive, it might be a problem with the enclosure.
It sounds as though we are dealing with the first case - the drive is mounted, but the computer does not detect a valid file system on the drive. FSCK might, I emphasise MIGHT, restore the extant file system to health, but if the partition table on the drive is blown, it will not. I will go out on a limb and say you don't have a valid copy of the partition map, so you can't just rebuild it - few if any folks would have that.
If you care about the data, your best bet is the Disk Warrior program I referenced earlier. If that won't help, you could go the commercial data recovery route, but be prepared to spend mega bucks for a quality job.

Since installing Maverick my MacBook Air is no longer showing my external Hard drive, which I connect via USB.

I know the external hard drive is working and the USB port works also.
I have seen lots of complicated answers on here but nothing I can understand.
Any help appriciated.
Lesley

The WD hard drive itself is probably fine, the enclosure has likely failed. WD externals are notorius for cheap enclosures failing. Try a different cable first. You can take the drive out and install it in a better enclosure, like one from OWC.
http://eshop.macsales.com/

Since i upgraded to mavericks,my external hard drive lost half of the files ,how can i get them back?

Since i upgraded to mavericks,my external hard drive lost half of the files ,how can i get them back?

Type move itunes library into the google serach bar.
It has always been very basic to always maintain abackup copy of your computer. Do you not have a backup copy?

Why can't iTunes play music from read-only external hard drive?

I have a write-protected external hard-drive which I keep all of my iTunes media on. iTunes recognizes all of the files, including the metadata on the id3 tags, and can find the files in Windows Explorer. However, it cannot play the files while the drive remains write-protected. Is there a work around for this as I would prefer to keep the hard-drive protected? Why does iTunes require write-access to play songs? Other media players have no problem playing from my read-only external hard-drive. Thanks for any help

Welcome to the Apple Community.
When you say you can't play through both devices at the same time, what happens when you try, are you able to select multiple speakers, do they deselect themselves, do you not get the option or does it just not work when you select multiple speakers.

Can I use one external hard drive for 3 of my Macs?

I have a 2007 white MacBook, a 2011 MacBook Pro, and a 2013 MacBook Air.
I want to be able to transfer all of my precious family photos off of my MacBook and Macbook Pro onto an external hard drive and then wipe those computers clean, and then I want to be able to backup and wipe clean my Macbook Air so that I can update it to Mavericks.
Can I use one external hard drive to do this for three of my Macs? Will it be compatible with all of them? And will I still be able to use the hard drive with my Air once it is updated to Mavericks?
Which hard drive do you recommend?

1. Yes. Note that anything you want to keep should be on at least two drives in case one of them fails.
2. Yes.
3. Yes.
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I can't find my external hard drive in FCPX

I can't find my external hard drive where I have all my old events and projects. In Finder it shows but not in the latest version of FCPX. I am full updated with FCP and Mavericks
Any Ideas?

Please check this out:
http://support.apple.com/kb/HT5958
http://fcpx.tv
Take your time and read the above. FCP X will create a new Library comtaining your Projects & Events, but read the above first.
File/Update Projects & Events/Locate

I'm trying to back up 10.6.8 (snow leopard) and all my files before upgrade to Mavericks. I have an old but sturdy external hard drive...how many GB available will I probably need to back up the whole thing? thanks!

I'm trying to back up 10.6.8 (snow leopard) and all my files before upgrade to Mavericks. I have an old but sturdy external hard drive...how many GB available will I probably need to back up the whole thing? thanks!

You will need a separate partition unless you plan to use the entire drive. You will need an amount of space somewhat larger than the total space now used on your startup drive. If you select the startup drive's Desktop icon, then press COMMAND-I to open the Get Info window. Used space will be shown in the topmost panel. Add a GB or two to that number to determine how much space you'll need for the backup.
Do not backup on a drive that has any files you want to keep. You can make a bootable backup as follows:
Clone using Restore Option of Disk Utility
1. Open Disk Utility in the Utilities folder.
2. Select the destination volume from the left side list.
3. Click on the Restore tab in the DU main window.
4. Select the destination volume from the left side list and drag
it to the Destination entry field.
5. Select the source volume from the left side list and drag it to
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6. Double-check you got it right, then click on the Restore button.
Destination means the external backup drive. Source means the internal startup drive.

I have 1 gb of memory with10.6.8 and want to upgrade my OS can i use an external hard drive to solve this

I am running 10.6.8 and have 1gb of memory and want to upgrade can i use an external hard drive to solve this problem

You are confusing RAM (Ramdom Access Memory) with hard drive storage space.
You need to install more RAM, not an additonal hard drive.
You can purchase an external hard drive, if you like, if you want to install the new OS X upgrade onto an external drive. If you want to run the new OS X Mavericks from the external drive, depending on your Mac model, you need a fast protocol external hard drive.
Either a USB 3.0, Thunderbolt or FireWire 800 connected external hard drive.
To start, if you are running your Mac on 10.6.8 Snow Leopard, this is the barest of RAM to run Snow Leopard.
Without knowing any of your Macs specs, you realistically should be running your current OS with, at least 4 GBs of RAM.
Newer versions of OS X need, at least, 4 GBs of RAM or more as these newer OS X versions use more Mac computer resources than earlier OS X versions.
What year, screen size, CPU speed and amount of RAM installed in your Mac?
Be aware, if your Mac is running any older software that used to run under older PowerPC model Macs, those software apps will no longer will work under newer versions of OS X.
The emulation software that allows older PowerPC apps to run under OS X 10.6 Snow Leopard, called, Rosetta, no longer exists in newer versions of OS X and is long dead.
Correct and reliable Mac RAM can be purchased from online Mac RAM sources Crucial memory or OWC (macsales.com).
Good Luck!

Mavericks 10.9.4 can't read my external hard drive which worked before the update

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