MacBook won't detect Toshiba 1T external hard drive

I just upgraded my operating system on my MacBook Pro and now my laptop won't detect my Toshiba 1T external hard drive, even though I've been using it before. Any ideas?

Adam513, turned out the latest operating system doesn't read Microsoft formatted external hard drives the way it used to. I had to purchase a new external hard drive, them find an apple computer with an older version operating system so I could transfer my files to the new external which is formatted for Mac. The new external works fine and once I have all the files transferred, I'll reformat my old external hard drive. Took me and the guy at the Genius Bar a while, but we finally figured this out. Hope this helps!

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I just upgraded my operating system on my MacBook Air and now my laptop won't detect my Toshiba 1T external hard drive

I just upgraded my operating system on my MacBook Air and now my laptop won't detect my Toshiba 1T external hard drive, how to solve this problem?

Try some of the troubleshooting steps outlined below:
Troubleshooting an external hard drive
> Unplug the hard drive, wait a few seconds, and then plug it back in
> Restart the computer
> Unplug any other peripherals from the computer
> Plug it into a different USB port
If none of those steps work, see if it is recognized in Disk Utility.
Checking a disk with Disk Utility
To check a disk using Disk Utility, launch the Disk Utility application in any of the following ways:
> Type the first few letters of its name into Spotlight. Select it from the results.
> Go Launchpad > Utilities > Disk Utility
> Go Applications > Utilities > Disk Utility
Once Disk Utility is opened, check to see if your external HD appears on the sidebar. If it doesn't appear at first, try the troubleshooting steps above again while leaving Disk Utility open, each time checking to see if the external HD appears.
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I recently just bought a Toshiba 3TB External Hard Drive. I am trying to partition it on my macbook, but it keeps returning and error message. The only thing I have changed is renamed easy drive.

I recently just bought a Toshiba 3TB External Hard Drive. I am trying to partition it on my macbook, but it keeps returning and error message. The only thing I have changed is renamed easy drive.

Your problem is not Boot Camp, in fact, is your optical drive. Win XP requires indeed sp2, but also the internal drive, does not work from external optical drive.
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My macbook pro retina wont recognize my external hard drive

my macbook pro retina wont recognize my external hard drive.
i opned the hard drive in the past on my computer and used it alot.
one time when i took it out i forgot to eject it, and since then when ever i conect it it would never show up on my computer or ever recognize the device.
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For starters try a PRAM reset.
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My MacBook Pro is not recognizing my external hard drive. The hard drive is listed in disk utilities but an icon does not pop up and I cannot access the data. Is there any way to resolve this?

My MacBook Pro is not recognizing my external hard drive. The hard drive is listed in disk utilities but an icon does not pop up and I cannot access the data. Is there any way to resolve this?

WE know Disk Warrior is more reliable, hence more useful, and should be in any disk mechanics toolchest.
For the record, I don't know anything of the kind. I have yet to see evidence that Disk Warrior is useful at all.
What I do know is that you seem to take every opportunity you get to promote it in these forums. Do you work for Alsoft?
Let me be a little more explicit. My opinion is that Disk Warrior is a waste of money if one has backups. If a journaled HFS directory is so badly corrupted that it can't be repaired by Disk Utility, then the volume should be reformatted and restored from backup, which has the same effect as running DW, but is probably faster and doesn't cost $99.

Please help me! My MacBook was stolen along with an external hard drive that had all my photos of my children on them. I hadn't backed to iCloud or backed anywhere else. I am distraught. No find my mac either...help...please...

Please help me! My MacBook was stolen along with an external hard drive that had all my photos of my children on them. I hadn't backed to iCloud or backed anywhere else. I am distraught. No find my mac either...help...please... Some programmes are still running like drop of and Skype... Is it all over?!?

Yes, the Old Master file has a folder for each year where I find all photos from that specific year. I am attaching a screen shot of the file.
In the meantime i have managed to download all photos (it did not download any video files though in mpg, avi, 3gp, m4v,mp4 and mov format) to a new iphoto library. Unfortunately the photos are quite mixed and often doubled up. I ma considering to purchase iphoto library which checks all duplicates in iphoto. this will save me a lot of time. What do you think?

You can use the final cut with macbook air 11 x 4GB with external hard drive

I can install and use the final cut X, with macbook air 11", 4GB with an external hard drive, and them transfer to the mac pro

No, not directly. You would need to transfer your data from your iPad to your Mac and then back it up to an external drive.
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My old MacBook suddently died after seven years. It contained a lot of data that I had backed up on an external hard drive using TimeMachine and transferring files to it. When I hooked it up to my new MacBook Pro (released mid-2012 I think), I couldn't seem to connect. Any ideas why?

does it show up in disk utility at all?
Did you have a second NON time machine copy of vital data as should be the case?

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Hi folks,
I have a 2.5" Hard Disk Box Mini USB 3.0 from conceptronic.
Since yesterday my macbook no longer recognize it.
Two days ago I've used it to restore a back up. But , stupid me, I forgot to copy a couple of documents.
Those document are on my external harddrive.
But my macbook just won't recognize the external hard drive...
Someone any ideas?!

Okay, second question: How does this forum software work? According to the thread list, someone named MacWizard has replied to this thread, but I can't see it.
MacWizard, if you could email your reply to spearbrave at gmail point c0m so I can read it there, I'd appreciate it.
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I've been using a LaCie external hard drive for my Time Machine backups and it's been working fine until a couple of weeks ago. Mavericks no longer recognizes the drive. I tested the drive out on a non-Mavericks Macbook and it booted up fine. I see there are issues with this, but wondering if anyone has a work around or if you've found there is a fix I can do? Really frustrating to not be able to access my archives or be able to back up my work!

Apple doesn’t routinely monitor the discussions. These are mostly user to user discussions.
Send Apple feedback. They won't answer, but at least will know there is a problem. If enough people send feedback, it may get the problem solved sooner.
Feedback

Can't find Toshiba portable external hard drive in finder after I upgraded to Mavericks

Anyone know how I can be able to see my external hard drive? I've been using it before and was able to see it until I upgraded my OS to Mavericks....Now, I cannot find it in the finder but I can see it in the disk utility however, my mac does not allow me to do anything on it...I don't want to reformat coz I have important files in my hard drive...PLEASE HELP! Thanks...

Yup. Still not there...only my Mac HD came out...my WD external HD can be detected coz it's the one I'm using for time machine back-up but my Toshiba external HD is still not present/ mounted in finder and I still cannot choose it in disk utility even if it is listed there...

How do I backup the files on to my Macbook Pro 2010 from a damaged external hard drive?

Awhile ago my macbook pro crashed and I had to make a bootable disk of Mountain lion no problem here but I accidentallly deleted all the files off of my hard drive from which i recovered using a PC computer and disk drill. After it had recovered all my files i later tried to put these files on to my macbook computer and disk utility views the drive as damaged and needs to be repaired but in order to do this i have to format it and change the partition and what not. When i try to copy/burn to a CD the finder stops the operation and says that "finder cannot complete the operation because file _catalog cannot be moved" and just recently when i plugged my drive into my computer the sharing permissions say read only. I know that my files are there because when i right click and press get info i see that 5 gb are used but the folder is only showing me 2gb what do i do to get my files onto my computer?
My external hard drive is a WD 1 TB my passport and the partition thats givving my this trouble is formatted to be MS DOS FAT32
I have parallels Windows 8
I am running Mountain Lion on my Macbook Pro Mid 2010 model

Use Data Rescue on the Mac and out the recovered files to another external drive.
Just grab your users files, the rest you trash. That's all you can do.
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ITunes won't recognize media on external hard drive

Hello Everyone....
So I have a 17" Macbook Pro, that was recently repaired under Future Shop's PSP that I purchased. They wiped it completely clean, so I essentially have a brand new computer again.
Luckily, I put almost all of my data and media onto my external hard drive before it went in. I have been operating with my iTunes media stored on an external drive for some time now with success.
Now that my computer is completely new, I did all the available updates, and then went to link my library to my iTunes, as it's "new again". It doesn't have my library attached anymore. I think I forgot to save the actual library files that I'm now reading about, and instead just saved the actual mp4 files. To be honest I didn't know there were library files and actual media files, seems weird...
I've changed my preferences back to the external drive folder where my media is located, and I've clicked "consolidate files" and nothing happens.
I've tried to hit the "scan for media" button that pops up when you have a wiped or new computer and nothing has happened.
I tried to physically click and drag everything from my external drive into my iTunes, and the little "processing xyz..." popped up with the blue and white striped progress bar, however when I woke up this morning nothing had happened. I'm not sure how that developed.
I can't seem to find anything on the internet to assist with this particular issue. I have all my media stored properly in the iTunes media folder but no actual "library" file. I guess I didn't realize they existed!
Any ideas? I am losing my mind. This mac is my second and has been in for repairs twice, and has given me nothing but problems. I am aware this "problem" is my own dumb fault but I feel like it should be much easier to recognize your existing media when it's right there in front of you.

Preferences does not scan for media, it only changes the storage location for new additions. The files have to be added to the library. It sounds like you tried this in one of your attempts but it did not work (I don't know why it didn't unless there is some detail I missed).
Where do you want your library? On the external or internal?
If the internal, start iTunes. Drag your media files to the "Automatically Add To iTunes folder. iTunes 9: Understanding the "Automatically Add to iTunes" folder. - http://support.apple.com/kb/HT3832 Or use the "Add" menu item to add files to iTunes, or drag them to the iTuens library in the sidepanel.
If somewhere else, start iTunes while holding down the option/alt key, select a library location. Add as above.
What are the iTunes library files? - http://support.apple.com/kb/HT1660
More on iTunes library files and what they do - http://en.wikipedia.org/wiki/ITunes#Media_management
What are all those iTunes files? - http://www.macworld.com/article/139974/2009/04/itunes_files.html
Where are my iTunes files located? - http://support.apple.com/kb/ht1391

New MacBook pro how do I add external hard drive which has my entire iTunes library on it. Do I just drag external drive icon into iTunes preference box that shows where new itunes library is now located ie. On the MacBook pro.

how do I add external hard drive which contains my entire iTunes library to new MacBook Pro. i want to keep iTunes library on external hard drive. But I want all my iTunes information: artist, songs, albums, playlists on my new MacBook Pro. I know about going to iTunes preferences- advanced-itunes media folder location. At this point I don't know what to do Do I drag external icon into iTunes media folder location box. I want to keep music files on external hard drive. I don't want to use macbook pro memory for my very large music files.

I will request that your query be relocated to the iPhoto forum where knowledgeable iPhoto users will be able to assist you.
Ciao.

I am trying copy dvd's (with no luck) to my macbook and then on to an external hard drive. What appears to be "copied" on the hard drive comes up with an error when you try to view the movies.

I am new to the Apple community and am having a lot of trouble. I am using a Macbook Pro and attempting to copy movies to an external hard drive for my husbands upcoming travels. I have used the "disk utility" and was able to watch the movie from my Pro but have not been able to figure out how to copy it to the external hard drive. I have a few movies on the external hard drive already but when he tries to view them from his Macbook Air or even the Pro we are unable to do so. An error message comes up and we are not able to determine what we need to do to fix this. We are not computer savvy and would appreciate if someone could explain to us how to resolve this problem. Thank you for all and any help we can get.

familyfromapo wrote:
The movies are Dexter that we purchased at a store. He uses the Air and since it does not have the disk option this is how we were hoping he could view his shows. We had no idea we would be breaking the law....just wanted to put all of the movies we have purchased on the external solely for the intent of our viewing.
Thank you for your time and help.
Sorry.
It is illegal to break the encryption to copy a dvd.
Judge: DVD-copying software is illegal - CNET News
Judge Rules DVD-Copying Software Is Illegal | Threat Level | Wired ...
MPAA Says Making Even "One Copy" of a DVD is Illegal

MacBook won't detect Toshiba 1T external hard drive

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