Corrupted usb

I corrupted my USB at school somehow... when I came home I tried to plug it into my mac to see if it would work but nothing happened. It didn't show up on my desktop at all. I googled and googled how to fix it and came across a few tips that I tried, like running the disk utility and using first aid but none of the options in the first aid tab are available. They are all greyed out. I have tried using downloadable apps but none of them find the usb, it's like it isn't even plugged into the mac at all.
I then tried to just erase everything off of it and start over but when I tried that a message popped up saying that the USB was 'unopenable' so I am at a dead end. I don't have any clue what to do from this point, please help me it's a 16GB usb and I need it for school and don't really have any more money to buy a new one in the middle of the month.
I also tried to restore it via my laptop (microsoft) and that tells me that the USB is 'write protected' yet on my mac it says write/read half the time and 'read only' the other half. It's insane and I really need it to work.
Thanks for any advice you are able to give me
~Susie.

easy way, no.
You didnt have a redundant backup to that external?
Your options are software recovery applications.

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How do i repair or recover data from a corrupt USB external hard drive that does not show up on my Mac desktop or disk utility

How do i repair or recover data from a corrupt USB external hard drive that does not show up on my Mac desktop or disk utility?
Last night i was using my external hard drive, for some reason the folder just closed and i couldn't find it on my desktop.
After googling solutions, i found it in the disk utilities, i clicked on the 'repair' button many times, but it said the 'error...' message.
So i ejected it to try again, now when i connect the USB external hard drive it doesn't show up on my desktop or disk utilities.
I really just want to either repair or recover the data on it because it literally has everything (documents, work files, photos etc) on it,
I downloaded an application to recover my files but it needs the USB to at least show up.recognise it which mine doesn't.
I know i should've backed it up on another USB, this definitely teaches me for next time to back up all my files.
Are the files lost forever or can i recover them by going to a shop or using a software?

Thank you for responding.
This might sound stupid since i'm not really knowledgeable with Macs,
but since all my files were moved from my mac computer to the external hard drive,
is it possible to recover those files through my Mac - like recovering deleted files?

Partition &/or Format Corrupt USB Drive?

Posting here as I am convinced, after much reading, that Time Machine has corrupted an external USB drive. The drive is a 160GB SmartDisk FireLite external USB drive (model USBFLB160). I'm not worried about recovering the data as it is just a clone of my MBP's drive and I have other backups. I am, however, interested in at least being able to use the drive again.
The drive will not mount. Does not show in Finder or Disk Utility. Is not visible to Disk Warrior (but I have not booted form Disk Warrior CD - not sure if that would make a difference). Plugged directly in to one of the MBP's USB ports the drive is not visible in System Profiler. Plugged into a USB hub the drive is visible in System Profiler (but still not visible in any of the other places mentioned above). The drive will not mount on my XP laptop either and is not visible in XP Disk Management utilities (would have settled for formatting as FAT 32 so I could then reformat as HFS).
I'm out of ideas.
Any suggestions on how I might be able to force-format (for lack of a better term) this drive? I'm willing to spend money so long as it is less than the cost of replacing the drive.
I apologize if this is truly the wrong place for this message. Happy to post elsewhere, but please let me know what forum would be better.
Thank you for your time!
Paul

Having similar issues with a Smartdisk Firelite 160GB firewire drive which has gone haywire since I tried to use Time machine.
Clean install of leopard, hooked up the firewire drive - Time Machine began first backup then failed at 1.3Gb. Couldn't unmount drive. Eventually shutdown and removed drive. Powered up and reconnected - drive showed up - tried Time machine, same problem. This time tried to repair drive using disk utility. Would not do it. Tried to erase and reformat drive. Failed.
Since then have been stuck in a loop as above. Can mount drive to use as a basic drive but trying to use Time Machine hoses it.
Have read loads of posts about time machine issues similar to this but cannot find a solution.

Deal with corrupted usb drive

I have been using a USB drive frequently for the last two years, and had more than 600 files on it (including MP3 and MP4). There has never been a problem before, but last night my MacBook Pro wouldn't open the drive, and when I tried using my mother's Windows 7 computer all it said is the drive was corrupted. Is there any way to try and rescue what is on that drive, or do I have to give up and loose hundreds of hours of work?

I was not able to drag or eject the USB drive from the desktop.
This problem does not happen every time, but frequent enough to be concerning. When problem occurs, I was not able to shut down Mac OS properly. I kept the USB drive plugged in and was able to close all my applications, except Finder. If I attempt to Force Quit the Finder, I would not even get to the top menu to shut down the Mac OS, and I had to force power down.
Is there a way to debug this issue or should I just take my Macbook and USB drive to the Genius Bar?

Recovering from corrupted USB install

I recently tried to install the USB tools from the developer site. The installation failed when rebooting.
The end result is that my USB ports, including the internal keyboard and trackpad, no longer work.
How do you recover a Macbook Pro when you cannot type or use the mouse to restore from your Time Capsule? My laptop is effectively bricked....
Things tried....
cmd+s on startup, takes me to the correct prompt, so the keyboard was obviously working for a second, however now I am at the root prompt and I cannot type.
shift on startup, also works, however once the load is finished, the jkeyboard and mouse still do not work.
It is obvious that the input is being seen at the start of the process, however the USB config is being loaded and therefore corrupting this.
Any ideas how to solve this? As I have time capsule, I am happy to blow my drive away, however as I am on Lion, I do not have discs, plus I do not have enough control to boot from them anyway.......
Regards
Chris H

I believe mende1's response is slightly incorrect. On older Mac computers that came with an internal DVD drive the only way to install Windows on those Mac's is from that internal DVD drive. Even if you connect an external DVD drive OS X and or the Mac computer Firmware will not allow the Win install DVD to boot from that external DVD drive. It must be done from the internal DVD drive. So if yours has failed then you would need to have it replaced before you can install Windows on your Mac.
I know this from personally trying to install Windows from an external DVD drive even when there is an internal DVD still in the system. My late 2011 MBP would not load the Win install from the external DVD drive but would from the internal DVD drive.
3str wrote:
Thank you for your reply. But this is really disappointing. My optic drive has died long time ago.........

IPhone corrupts USB video card when it connects

I just started connecting my brand-spankin new iPhone to my Dell PC and when I do it corrupts the already-installed USB video card.
I am running a StarTech USB video card to drive a second monitor and I have had it about 9 months and it has worked exceptionally well - until I connect the iPhone via USB cable.
It hangs the second video output and after rebooting I find myself in an endless loop of "reboot because add new hardware has completed installing new devices".
This continues even after I remove the phone from the computer. I need to sync with iTunes, so if anyone has an idea on why this is blowing out my vid card I'd appreciated it.
The system gets so messed up the only thing that I have found to resolves the issue is to roll back to a previous restore point.
Thank you.

philipb27 wrote:
I'm really surprised that the iPhone has such an issue. I just want to sync my music with it - and I am dissappointed.
Given that your post on this conflict is the only one I've been able to find, I'm led to think it is a computer issue, not an iPhone issue. Not a defender of Apple, but I have a Dell desktop and it has its moments of weirdness -- far more of them than my two iPhones put together.
Originally you said
"I just started connecting my brand-spankin new iPhone to my Dell PC and when I do it corrupts the already-installed USB video card."
If you had been using the iPhone for a year and then connected the usb video card, would you then have said the video card has an issue? Perhaps so, but I suspect it may be neither the phone nor the card but something about the computer.
If you have another computer, try the 3GS and video card with that and see if you get the same result.
Phil

How to recover corrupt USB files?

my USB flash drive stopped working today, when i try to verify it on disk utility, i get this message:
** /dev/disk1s1
can't open (no such file or directory)
error: filesystem verify or repair failed
i tried disk drill, wondershare, and stellar phoenix and none of them recognize my flash drive.
any advice on how to recover my files?

Here are the simple steps to repair data file in QuickBooks.
Step 1: Close the software as soon as you receive damaged data file error message.
Step 2: Now open the software. It will make a new Qbwin.log file.
Step 3: Click on the ‘Window’ option and then from the drop-down menu, click on ‘Close All’. Now go the ‘File’ option then from the drop-down menu, click on ‘Utilities’. A menu will appear.
Step 4: From that list select ‘Verify Data’. If QuickBooks reports that there is no issue it means your data is alright. On the other side, if you get a message saying “Your data has lost integrity” or “A data problem prevents QuickBooks from continuing” it
means your data is corrupted or has a structural issue. And in this case, you will have to run the Rebuild Data tool.
Step 5: Click on ‘Windows’ and select ‘Close All’ in order to close all the QuickBooks windows.
Step 6: To launch the Rebuild Data tool, click on ‘File’ and select ‘Utilities’. Now from the drop-down menu, go to ‘Rebuild Data’ option.
Step 7: Click on ‘OK’ and a pop-up will come warning you to take a backup of your file. It is recommended to create an entirely new backup file and don’t overwrite the existing file. To prevent overwriting, give a new name to the file when prompted.
Click 8: Wait for some time and let the Rebuild Data Utility finish the process. When completed, click on ‘OK’.
Step 9: Close the company file. Reopen the file to refresh the list.
Step 10: Select the company file and now to launch the file, click on ‘Open’.
Step 11: In order to verify if the data file is clean and is repaired, again run the Verify Data utility.
Content From- http://supportforquickbooks.iyogi.com/troubleshooting/repair-quickbooks-data-file.html

Help formatting corrupted USB Flash Drive

My USB flash drive is now unreadable by my mac after neglecting to safely eject it. In disk utility I do not have the option to verify disk or repair disk. When trying to erase everything on it, an error message comes up saying "Unable to write to the last block of the device". Write status is still showing read/write. Can anyone tell me how to fix this? Do I really have to go out and buy a new flash drive?

Drive Partition and Format
1. Open Disk Utility in your Utilities folder.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Apply button and wait until the process has completed.
4. Select the volume you just created (this is the sub-entry under the drive entry) from the left side list. Click on the Erase tab in the DU main window.
5. Set the format type to Mac OS Extended (Journaled.) Click on the Security button, check the button for Zero Data and click on OK to return to the Erase window.
6. Click on the Erase button. The format process can take up to several hours depending upon the drive size.

Ssh packet MAC corrupt, USB interference, RAM swapping fixes... Why?

I swapped memory in my 2010 mid Macbook pro. The RAM is labeled PC3 10600, just as the RAM that was previously in the machine is labeled.
However, with the new RAM in the machine, ssh is unstable - which makes Time Machine fail, for instance - as well as having interence on USB audio. Swapping back fixes the issue.
But no amount of RAM tests find fault in the new sims.
It's very frustrating! Has anyone else had this issue? Time Machine failing with new RAM?
-Crissa

I swapped memory in my 2010 mid Macbook pro. The RAM is labeled PC3 10600, just as the RAM that was previously in the machine is labeled.
However, with the new RAM in the machine, ssh is unstable - which makes Time Machine fail, for instance - as well as having interence on USB audio. Swapping back fixes the issue.
But no amount of RAM tests find fault in the new sims.
It's very frustrating! Has anyone else had this issue? Time Machine failing with new RAM?
-Crissa

My MacBook Pro corrupts USB hard discs

Hi, this is my first time so cut me some slack please :-) My computer details are :
Hardware Information:
         MacBook Pro (17-inch, Early 2011)
         MacBook Pro - model: MacBookPro8,3
         1 2.2 GHz Intel Core i7 CPU: 4 cores
         16 GB RAM
Video Information:
         Intel HD Graphics 3000 - VRAM: 512 MB
         AMD Radeon HD 6750M - VRAM: 1024 MB
I use various external hard disks to back up, especially to Time Machine. Occasionally (every few days) when I boot up the MacBook I get an error message to say that Mac OSX 9.1 cannot repair the HD and that I should backup the HD and reformat it. Most files I can backup, but I cannot backup the Time Machine files.
Seagtae 4TB HDs seem more prone than WD 3TB or less.
Any ideas are welcome,
Geoffrey Kelley

If you have any software from Seagate or WD on your Mac or on the drives themselves, that may be the problem.
WD has gone to extraordinary lengths to make their drives incompatible with Mavericks. In some cases they have firmware in the drive enclosure which is incompatible too. If this is the case with your drive you may find a firmware update on the WD website, which you can install, if you trust WD (which I don't). If I had a WD external drive I'd remove it from the enclosure and put it in another (non-WD) enclosure.

USB devices all of a sudden no longer recognized in windows 7

Hi,
I am using a HP Pavilion Simline s5550nl edition with windows 7 home premium (64-bit) since 1.5 years. Never had any problems until 3 days ago. Since 3 days suddenly some new devices, already plugged-in devices and previously used devices are no longer recognized (USB-device not recognized-error after plug-in).
I used an USB-mouse, USB-keyboard, Smartcard-reader, Sony Story 1.5TB External HDD, USB WebCam. They al worked fine.
3 Days ago I bought a WD Elements 2 TB External HDD. After plugging in, it was not recognized at first. Replugging it in it was recognized, but trying to open the drive in Explorer, it gave a not-formatted-error (while the disk should have been pre-formatted for Windows 7). However, i tried to format the disk, but it could not reach it any more. After rebooting the system the WD elements HDD gave the USB-device-not-recognized-error, using all other USB-ports didn't change that. In fact my Sony External HDD was no longer reachable either. Unplugging and replugging it in gave the same USB-device-not-recognized-error. Trying previously flawless working USB-devices all gave the same USB-device-not-recognized-errors (USB-flash disk 4GB, External HDD 2.5inch 160GB, USB-/card reader HUB, iPhone).
I then tried to connect my Sony and WD external HDD on my other computer with windows XP SP3. They were recognized within seconds and working fine (also the WD elements External HDD indeed turned out to be pre-formatted).
Strangely enough my USB-mouse, USB-keyboard and smartcard-reader kept being recognized at plug-in. Furthermore, my printers (connected over LAN) and NAS (connected over LAN) were usable without any problem. I did not encounter any other problems in functionality of windows. I then thought it might be a corrupted general USB-driver for mass-storage or something, so I started to google this problem. Things I have done so far (before each step I unplugged all USB-devices, rebooted and reconnected the devices):
- Turning computer off, unplug power-cable for 2 minutes, reboot.
- Updating BIOS to version 6.04 (was running version 6.02).
- Uninstalling all USB-devices/mainhubs etc in devicemanagement, automatic reinstallation at restart.
- Try installing newer USB-drivers for mainhubs, messages the installed drivers are already the latest.
- Uninstalling all 'hidden' USB-devices.
- Trying to go back to configuration of 1 day ago (maximum i could go back), resulted in an error that the file might be corrupted.
- Turning computer off, unplug power-cable overnight, reboot.
- Running HP-systemdiagnostics: all passed.
- Running Norman anti-virus scan (latest update): no infection.
- Again uninstalling all USB-devices/mainhubs etc, automatic reinstallation at restart.
I also noticed that during the night before this malfunction appeared (so actually several hours), on january 20th, an automated microsoft critical update was installed (some anti-spyware definition update). I am now thinking it might still be a driver-problem of some sort of general USB-mass storage driver or due to this microsoft update or maybe some clever virus.
I no ordered a Recovery disk (never had to use one, so did not jet own one), to recover windows and if that doesn't help reinstall it. However I hope that anyone can bring up a solution that I am overlooking?
D. Berks

OK, meanwhile I found that only uninstalling the USB2-driver enables the USB-ports again. Uninstalling it makes al devices recognizable, whil reintsalling it immediately makes all USB-devices unrecognizable.
I tried updating the driver to the latest version, deleting it (after reboot an automated reinstall is triggered), but nothing helps. As if soething that stays in the system makes USB2 to corrupt USB-channeling or something.
I strongly believe that it has something to do with the windows-update, but I can nowhere as a question about it to microsoft (will cost 70 euro's!).
Does anybody knows what this could be? Or better: knows of a solution?
Tanks,
D. Berks

Iphone usb cable shuts down laptop with error any ideas why

every time i unplug the iphone usb cable it shuts down laptop with an error,i'm running windows7 on laptop and get a blue screen error.

This is a common problem with corrupt USB drivers. Try using a different user account, and make sure that you eject the device properly before removing the iphone cable. I don't know what system your running so I can't link you to any USB drivers, but google is always your friend. If all else fails, un-install itunes, re-install it again, back it up with all your documents to a USB drive, then re-install windows 7. Not pleasent, but possible.
4r1

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Hello. This is Kimberly from the customer experience team at Lenovo. Sorry you are having an issue. The product manager for T Series suggested the following: We assume that the USB 2.0 drive you are trying to connect functions in another computer. It is probably a formatting issue or a USB Registry Key Conflict. If reformatting the USB drive doesn't work, search for USB registry cleaner tools online to remove any conflicts/corrupted USB registry keys. Also, Microsoft may have some support tools to clean the USB registry keys

My computer does not recognise my usb key anymore?

I have spent the best part of yesterday working of some lessons I needed to prepare.
Happy with myself I stupidly only saved them on a new external usb key which was at the time recognised by the Mac.
However, when I tried to plug that key on another pc it asked me to format it?? Obviously I did not has all my work was on it. SO I returned to my good old Mac and inserted the key... guess what? It refused to recognise it either. I could not even restore anything... Where has my work gone??? How can I retreive it?
Please, I do understand I should have been a bit more clearver and save it in two location but I did not.. I now need some help, if anyone could I would be so eternaly grateful>

if one remove usb sticks without first ejecting them this can happen
the data becomes corrupt
you can try googling for various tools which may or may not be able to recover the data
salvage corrupt usb stick
if they can't then there are companys which make a living on salvaging deleted data but of cause that is pricy

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