PNY 128 GB "This disk needs to be repaired. Click Repair Disk"

I have used three PNY 128 GB USB drives on my iMac. One works fine, one worked briefly but was never recognized again, and the third has the following problem.
New out of the box today, it was recognized immediately on the iMac (FAT32). I reformatted it to OS X Journaled with no problem.
I tried to encrypt it, but got an alert that it had to be partitioned with a GUID partition scheme first. I created 1 GUID partition for the entire disk without issue.
I then encrypted it with no problem.
When I tried to remount it, it didn't show up.
Unlike my other PNY 128 GB that was never recognized again, this drive did show up in red text in disk utility.
I verified the disk in disk utility and got the following alert "This disk needs to be repaired. Click Repair Disk.'
When I run "Repair Disk," it runs then gives me the alert again "This disk needs to be repaired. Click Repair Disk." It never repairs the disk and just keeps the same loop going.
I have restarted the computer, mounted and remounted the drive numerous times and get the same result. I have a fresh install of Yosemite (due to a number of other issues with the iMac).
Can I do something or does this go back to the store tomorrow?

OWC and Amazon carry nice small external drives like following.
http://eshop.macsales.com/shop/firewire/EliteALmini/eSATA_FW800_FW400_USB

Similar Messages

This disk needs to be repaired:

I have just checked my hard drive and got this message:
Disk Utility has stopped verifying "Macintosh HD"
This disk needs to be repaired. Startup your computer with another disk (such as your Mac OS X installation disk), and then use Disk Utility to repair this disk.
I don't have the disk as I am in a remote part of Ireland miles from both my disk and an Apple store.
Now, my question is, if I update to 10.7 or later via the App Store - I'm currently using 10.6.8 - will I not need to use the OS X disk?

You can not install OS X in system without a properly verified and repaired disk.
Wait until you can get hold of OS X 10.6 Snow Leopard disc to do the Disk Repair.

How to proceed from Disk repair "invalid directory item count" "this disk needs to be repaired"?

I'm trying to repair the hard drive on a MacBook running Mac OS X 10.6.8. To be honest I'm surprised the machine has lasted so long. It's very sluggish at the moment.
When verifying the hard drive, I get these details:
Verifying volume “Macintosh HD”
Performing live verification.
Checking Journaled HFS Plus volume.
Checking extents overflow file.
Checking catalog file.
Checking multi-linked files.
Checking catalog hierarchy.
Invalid directory item count
(It should be 37 instead of 35)
Checking extended attributes file.
Checking volume bitmap.
Checking volume information.
The volume Macintosh HD was found corrupt and needs to be repaired.
"This disk needs to be repaired. Start up your computer with another disk (such as your Mac OS X installation disc), and then use Disk Utility to repair this disk."
How should I proceed from here? Is the only path to use a mac OS X installation disk (which I don't have, so would have to source and borrow)?
Many thanks

Get the disk and insert it in the optical drive, then restart holding down the C key. You will come to an install screen to pick language. Unless you want some other language click inter. Then before you go any further, look to the top of the screen for a drop down utilities menu. Go to disk utilities open an select your Internal hard drive use repair option in the menu and repair drive . You may have to do this more than once. If this will not repair you drive,you will need a third party repair tool such as disk warrior or a new drive.

How do I do this: "This disk needs to be repaired. Start up your computer with another disk (such as your Mac OS X installation disc), and then use Disk Utility to repair this disk?"

"This disk needs to be repaired. Start up your computer with another disk (such as your Mac OS X installation disc), and then use Disk Utility to repair this disk."

Stick the disk in, reboot holding c.
Disk Utility is a menu option about the 2 or 3rd screen in the installer. (don't install OS X!)
Because your booted form the installer disk, you can repair the disk.
Quit and exit the installer and reboot.
If your drive is not repaired, make a note of all what it says, for Apple to use.
Reboot and get your files off to a external drive,
Take the note and your comptuer to Apple for a warranty/Apple care call, they will replace the drive.

Error: This disk needs to be repaired using the Recovery HD. When I boot on Recovery and run verify disk, the error doesn't come anymore. Just when I run verify disk on normal mode. Anybody has seen this before?

My Macbook Pro (Retina, 13-inch, Early 2013) has been freezing out of the blue probably once every two months. I restarted on safe mode, went to Disk Utility, repaired permissions and ran "Verify Disk" and got the following:
Invalid directory item count(It should be 114483 instead of 114484)
File system check exit code is 8.
Error: This disk needs to be repaired using the Recovery HD. Restart your computer, holding down the Command key and the R key until you see the Apple logo. When the OS X Utilities window appears, choose Disk Utility.
Rebooted on Recovery mode and ran "Verify Disk" but the message didn't appear anymore, thus not letting me to access the "Recovery HD" procedure.
When I restart normally and do the disk verification I get the same error.
Has anybody come to something similar?
Suggestions?

I never ever run a Verify Disk. I simple repair the disk drive and then the user partition(s).
And do one or two Safe Boots.
Also helpful to have two full backups: TimeMachine at least, plus a clone of your system drive and data.
Install or clone the system to an external hard drive, repair that and then boot from it, check that everything works, repair the internal drive.
You need to use Repair to TRIM an SSD.
Lots of problems with Yosemite when updating install a new OS. Always better to backup, erase, install, and then use Setup Assistant to import and restore settings and files.
Probably better to post in the MacBook Pro forum or better yet, in Yosemite forum.

"Error: This disk needs to be repaired."

Greetings
I ran the disk utility on my Macbook drive and got the following message;
Error: This disk needs to be repaired. Start up your computer with another disk (such as your Mac OS X installation disc), and then use Disk Utility to repair this disk.
I have googled around but can't seem to find a concise way of doing this, everyone's going on about making new disk partitions?
I have my snow leopard install disk to hand, what is the simplest way to make this repair with my install disk?
Thank you!

The hatter wrote:
Install OS X on a 2nd drive and use that.
Note that there are a few drawbacks to this as well as the benefits:
1. Obviously, you need a second drive. It's great to have one for backups but there are other ways to back up your important data if your budget won't stretch to include the extra drive just yet. Plus, if it comes down to space for important backups vs. space for the OS & utilities, go for the first. That's the irreplaceable stuff!
2. Any software (including the OS) installed on a hard drive is subject to possible corruption, including the kind you are trying to repair. This is not true of software running from an installer DVD, since its contents can't be altered (short of physical damage). So, if the DVD boots the Mac & its included utilities run, you can be certain you are not using corrupted or damaged items. This is not true when you run from a second hard drive.
3. Because you can make intentional or inadvertent changes or additions to the OS on a hard drive, & because some of them can adversely affect its stability, just as in #2 you cannot trust the hard drive to be as safe to use as the DVD.
4. The DVD runs everything as the root user, without the need to log in to any user account. This is beneficial because similarly to #3, some user login items can interfere with normal operation. However, running as root user is dangerous unless you know exactly what you are doing. The DVD greatly reduces this danger by limiting what you can do while running from it to installing the OS or running the included (& known uncorrupted) utilities. this is not true if you run as root user from another hard drive.
So, it is a good idea to weigh the benefits of the second drive approach against the safety of the DVD one & choose which is best for you.

Disk Utility says of USB Drive - "This partition can't be modified" "This disk is not writeable and cannot be partitioned"

Several months ago I bought a 64GB PNY USB memory stick to transpord data quickly.
It seemed to work fine. I could format it as a Mac partition and use it. I hardly ever need
it so I just put it away.
Today I wanted to use it to put a file on and take it to the Kinko's/FedEx to print, and I
find I cannot mount it on any of my computers, iMac, MacMini or MacBookPro.
In Disk Utility virtually everything is greyed out.
Disk Utility says: "This partition can't be modified" "This disk is not writeable and cannot be partitioned"
If I try to mount it, it says "This disk cannot be mounted"
There is no physical read-only switch or setting on the disk that I can see and it is very small.
I has a Mac OS installed on it, so I wonder if that is a problem? I should be able to write over that
or reformat it I would think.

Thanks for these replies.
I've got regular time machine backups and just backed up some of my data by copying some key folders to an external drive. I'm bit paranoid about backup integrity and would ideally like to do another full backup to a different drive using a system other than time machine, in the event that something goes wrong with the time machine backup. Any recommendations on good and affordable backup software to do a backup of my TM backup?
One other question: I seem to encounter problems like this pretty frequently. I'd say once a year or so, my drive fails completely or gets near enough to failing that I have to wipe and restore. (I've never had a TM backup fail to work, though the last go around there were some hiccups which has led to my backup paranoia.) I've had this happen on multiple computers, so I'm becoming pretty convinced that the problem lies somewhere in my data. Is it possible (even likely) that there's something in my data causing this recurring problem? If so, is there anything I might be able to do to try and pinpoint and address this problem? I'd love to go one year without having to wipe/restore my machine!
For a while I thought I just had bad luck. But I think this is like the 4th or 5th time this has happened in the past 4 years and every time, I'm restoring from a backup, so I come back with the same data. It's the one constant since I've had 3 different machines over this same time period.

Why do I get the message "This disk cannot be used to start your computer" w/ upgrade to Mountain Lion from 10.6.8

I have a MacBok pro later than 2007. running 10.6.8 . Downloaded Mountain Lion from app store. When I get to the install page I get the message "This disk cannot be used to start your computer." What is the problem and what can be done?
Thanks,

I appreciate the prompt reply. I saw that on the support community and it isn't giving me a solution.
The disk where the volume I need to upgrade is 250.06 GB Hitachi, the partition window (current) does not have a blue marker for the used data space, so there is no way to resize it.
If it's helpful, System profiler reads:
NVidia MCP89 AHCI:
Vendor:          NVidia
Product:          MCP89 AHCI
Link Speed:          3 Gigabit
Negotiated Link Speed:          1.5 Gigabit
Description:          AHCI Version 1.30 Supported
Hitachi HTS545025B9SA02:
Capacity:          250.06 GB (250,059,350,016 bytes)
Model:          Hitachi HTS545025B9SA02
Revision:          PB2AC60W
Serial Number:          100814PBL200CSJA72PN
Native Command Queuing:          Yes
Queue Depth:          32
Removable Media:          No
Detachable Drive:          No
BSD Name:          disk0
Rotational Rate:          5400
Medium Type:          Rotational
Partition Map Type:          GPT (GUID Partition Table)
S.M.A.R.T. status:          Verified
Volumes:
Capacity:          209.7 MB (209,715,200 bytes)
Writable:          Yes
BSD Name:          disk0s1
Capacity:          249.72 GB (249,715,376,128 bytes)
Writable:          Yes
BSD Name:          disk0s2
Macintosh HD:
Capacity:          249.71 GB (249,714,352,128 bytes)
Available:          100.41 GB (100,405,456,896 bytes)
Writable:          Yes
File System:          Journaled HFS+
BSD Name:          disk0s2s1
Mount Point:          /
Boot OSX:
Capacity:          134.2 MB (134,217,728 bytes)
Writable:          Yes
BSD Name:          disk0s3

Two HDDs saying 'disk needs to be repaired' at same time / external drive.

Hello there,
I have had a strange problem within the last couple of days. Both my iMac which I use at the office and my MacBook Pro have had problems writing to an external FW800 drive which I work directly off [the error comes when I try and save from an application / try and copy / rename files on the drive]. The message is that either a problem occurred or that the filename is too long [it isn't]. When this happens I try and restart, but the disk causes the finder to hang.
This has happened with both machines [the iMac and MBP], and as a consequence - when I run disk utility on each machine, I get a message that the disk needs to be repaired:
Error: This disk needs to be repaired. Start up your computer with another disk (such as your Mac OS X installation disc), and then use Disk Utility to repair this disk.
Has anybody had similar problems? Is this a coincidence? Or would blame point to the external drive?
The drive is a Lacie Rugged 250gb FW / USB. It does get rather hot - don't know if that should affect anything.
Many thanks,
Ben

Could this problem in turn cause the internal HDD problems I've been experiencing with the iMac and the MBP after the Lacie becomes unresponsive?
Or, your internal HD problems are transferring to the Ext.?
It's hard to say. I would at least do the following basic repairs to all your hard drives.......
Try using Disk Utility to do a Disk Repair, as shown in this link, while booted up on your install disk.
You could have some directory corruption. Let us know what errors Disk Utility reports and if DU was able to repair them. Disk Utility's Disk Repair is not perfect and may not find or repair all directory issues. A stronger utility may be required to finish the job.
After that Repair Permissions.
No need to report Permissions errors....we all get them.
Think it might have to be returned...
Yes I would return it just cause of the heat issue alone.
Dale

After getting the dreaded gray/blue screen, I tried to run disk repair on the internal disk. I got an error message saying "Disk Utility can't repair this disk and restore your backed-up files. The volume Macintosh HD could not be verified completely

After getting the dreaded gray/blue screen, I tried to run disk repair on the internal disk. I got an error message saying "Disk Utility can't repair this disk and restore your backed-up files. The volume Macintosh HD could not be verified completely." What do I do now? This is an iMac and I'm running 10.6.8.

Clean Install of Snow Leopard
Be sure to make a backup first because the following procedure will erase
the drive and everything on it. See below for how to clone a drive.
     1. Boot the computer using the Snow Leopard Installer Disc or the Disc 1 that came
         with your computer. Insert the disc into the optical drive and restart the computer.
         After the chime press and hold down the "C" key. Release the key when you see
         a small spinning gear appear below the dark gray Apple logo.
     2. After the installer loads select your language and click on the Continue
         button. When the menu bar appears select Disk Utility from the Utilities menu.
         After DU loads select the hard drive entry from the left side list (mfgr.'s ID and drive
         size.) Click on the Partition tab in the DU main window. Set the number of
         partitions to one (1) from the Partitions drop down menu, click on Options button
         and select GUID, click on OK, then set the format type to MacOS Extended
         (Journaled, if supported), then click on the Apply button.
     3. When the formatting has completed quit DU and return to the installer. Proceed
         with the OS X installation and follow the directions included with the installer.
     4. When the installation has completed your computer will Restart into the Setup
         Assistant. Be sure you configure your initial admin account with the exact same
         username and password that you used on your old drive. After you finish Setup
         Assistant will complete the installation after which you will be running a fresh
         install of OS X. You can now begin the update process by opening Software
         Update and installing all recommended updates to bring your installation current.
Download and install Mac OS X 10.6.8 Update Combo v1.1.
You may be able to backup your data if you have an erased external drive you can use. Before you do the above but after you have opened Disk Utility you can try to clone your drive:
Clone using Restore Option of Disk Utility
1. Open Disk Utility.
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
      the Source entry field.
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.
Now this will only work if the drive is accessible and can be cloned by Disk Utility. Otherwise, you would need to access your drive from another Mac that you can connect via Firewire - Target Disk Mode.

This disk is locked

I need install Mac OS X Lion my Mac Pro, but error like "This Disk Is locked" please hel me

Same problem on a 2009 MacBook. First it was overheating (at about 14 min) stoping and restarting installation in various times before completition, then I followed the instructions to create a boot drive to install Mountain Lion but when trying to install from there it reports that the disc is locked. I just spend a day trying and trying to figure out what to do.
Apple I'm very dissapointed!

TS1901 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.

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.
*** ??? I need to take out the data from a WD320 that shows this error and then format the WD and put the data into again
THANKS !!!

I'm sorry, is there a question here? You seem to know precisely what you need to do…

Can I fix a disk with this message?-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.

Can I fix a disk with this message?
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.

Some problems can indeed be fixed this way. But working from Recovery_HD or Disk Warrior DVDs and working in the restricted environment those provide can be difficult. You can literally spend days working on this problem (while your regular work is unavailable) only to discover the old drive is unsalvageable.
There is no way to know up front whether you are facing a major Hardware failure or a minor software glitch, or something in between. Often you are forced to work from the drive you no longer trust. I continue to recommend you do this work from a different, fully functioning Mac OS X booted from a different drive.
If you have had the foresight to (as The hatter often recommends) clone your virgin install onto another drive for use in such situations, you will be able to recover from such problems in record time. If not, my previous recommendations stands:
Buy a new Drive. Or two. Install Mac OS X from scratch on a new drive, and get your Mac running again. Later, you can use the full power of Mac OS X to attempt to rescue your data, if needed. Then Zero the old drive, to see if it can hold data again reliably.
If the old drive eventually provides some needed data, and is salvageable, Merry Christmas.

Disk Utility can't repair this disk

I have been having trouble booting. It started when I connected a router to it. It seemed to eat up the free disk space and I only have 77 MB left or something around that.
Anyway, I tried deleting files with command-s commands, and it worked one time and it freed up 2 GB of space. I restarted the computer and when I tried to start it up, it still got stuck in the gray screen with the whirly thing at the bottom. I checked the space and it was 77MB now.
I decided to boot from the Install Disk (Snow Leopard 10.6.0).
I checked Disk Utility first and verified the disk. It came up with the message:
"Error: Disk Utility can't repair this disk .... disk, and restore your backed-up files."
What should I do now?
I have the Mac HD volume on backup already so I don't have to do the back up stage.
Should I erase the disk while I am in Disk Utility?
And format it to Mac OS Extended Journal?
And then install the operating system again?
Thanks.

To answer your questions, first, some other options...
If you fill your disk up that far, you are going to have problems. Don't ever do this, 10% is a bare minimum, you may need even more, depending on the size of your disc.
I have seen before where a disc repair utility couldn't perform its function simply because there was not enough slack space available on the drive. While I have never seen this with disc utility, it is possible that the disc is repairable as-is, if you could just free up a couple more gigs of space first.
Secondly, you could also try Disk Warrior, or to a lesser extent, Techtool Pro, or even iDefrag. I have personally never had Techtool Pro fix anything that Disk Utility or Disk Warrior couldn't fix, so I hesitate to even mention it, but I have had Disk Warrior and iDefrag clear up problems that Disk Utility either couldn't detect, or couldn't fix.
If you are still in dire straits, you should re-partition the drive using disk utility. This is the safest route, then go from there.
good luck!
-a

Yosemite won't install on my computer because the disk needs to be repaired. I verify, it indicates repair is needed but then the repair disk button can't be clicked. I tried to start in safe mode but it just froze.

I'm to install Yosemite but it tells me the disk need to be repaired. When I verify the repair disk button remains pale and in-clickable. I'm not sure which version of OS X I'm running but I do know I forgot to back up. Help me o-message board, you're my only hope!

Welcome to Apple Support Communities
First of all, open the Apple menu -> About this Mac, and tell us what OS X version you have.
If it is 10.6.x, you need the Snow Leopard DVD. Insert it, press the C key while your Mac is starting up, choose your language and go to Utilities menu (in the menu bar) -> Disk Utility.
If it is 10.7.x or higher, hold down Command and R keys while your Mac is starting up to boot up in OS X Recovery, and open Disk Utility.
After opening Disk Utility, choose your OS X partition in the sidebar (it is usually named "Macintosh HD") and press "Repair Disk". When it has finished, restart your Mac, make a backup of your files and try upgrading to OS X Yosemite.
The backup will help you in case you decide to go back to the OS X version you are using now. If you cannot make a backup and the disk repair does not work, you will have to format the hard disk.

PNY 128 GB "This disk needs to be repaired. Click Repair Disk"

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