USB thumb drive not working

I borrowed a friend's USB thumb/flash drive that had been used on a Windows PC to store important data. I downloaded some applications (Mac upgrades) onto the drive using a PC, and then successfully loaded them onto my G5. I safetly removed the thumb drive and now it doesn't work in either a PC or my Mac. Can anyone help retrieve this data using a PC or Mac? I'm sure it's a formatting issue but can't understand why my Mac no longer reads it.
On the Mac, if plugged into the keyboard, it gives the warning that it's drawing too much power. If I plug it into the back of the Mac, nothing shows on the desktop, even after a long period of time. The PC gives an oddball error - it's not recognizing the format.

Use a prepaid iTunes card if you haven't got a card

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I have a new USB thumb drive that works in my 2010 iMac but not in my 2012 MacBook Pro

Today I purchased an 'autodrive' usb thumbdrive at Staples. The drive works fine on my mid 2010 iMac, and my Asus Netbook running Windows 7. However, it is not recognized at all by System Information or Disk Utility on my mid 2012 Macbook Pro. Both Macs are running Mountain Lion 10.8.2.
If I connect my 2 year old SanDisk USB thumb drive to the same USB port on my Macbook Pro, it is immediately recognized and a finder window opens. The SanDisk drive is also recognized properly by the iMac and the Netbook.
Is there any way to further debug this issue to get a better idea of why the device is not being recognized by the Macbook Pro?
Thanks,
-Scott

I am having this exact same problem with my New MBP 15" quad core 2.6GHz i7 on 10.8.2. I have other thumb drives that work, but an older thumb drive that works on my prior MBP 15" 2.7GHz dual core i7 on 10.7 and XP and Windows 8 laptops isn't recognized at all by the newer MBP. This thumbdrive is only 256MB and may be USB 1, but USB 1 stuff should work on a USB3 interface unless it's a bug. I've freshly formatted the drive and tested it with disk utility on the older MBP, so it's an issue with the newer Mac's USB controller or MacOS 10.8.2
I suspect a bug.

USB Thumb Drive Not Mounting With Mavericks

I have several Thumb drives (FAT32) that no longer mount on my iMac running Mavericks.
The thumb drives do not show up in finder nor do they show up in disc utilities.
The USB bus still seems to work since other USB devices seem to connect to it, but none
of the thumb drives do. I have done an SMC and PRAM reset with no luck. I do not have
TUXERA nor NTFS-3G so nothing their to disable.
I do have a Mac Mini running Mountain Lion and all thumb drives do work with that.
Out of ideas here.

But given that other USB devices work here — what sorts of other USB devices?
I have 2 external hard drives that work on the very same USB port and an external blu-ray drive as well.
Are there any add-on anti-virus or anti-malware "tools" installed?
None. Never have.
To check the USB bus, remove all hubs and all other external USB devices from this Mac, reboot, connect one of the thumb drives directly to the Mac, and try again.
Everything re-connected except for the thumb drives. External hard drive and Blu-ray drives popped right up but no USB flash drives.
Try a different and newly-created login, and see if the flash drives work there.
I used the Guest login and the same thing, everything works except the Thumb drives.
To check the local OS X installation, see if booting this Mac from the recovery partition (if one is present)
None is present.
or booted from another (external) OS X disk allows access to the thumb drives.
I have en extern HD that is blank, but I do not know how to install Mavericks on it then run it.
Is there anything in common among these failing USB disks? Same brand and model? Or a mixture of different thumb drives?
They are all FAT32, other than that no I have Cruzer, Kingston and PNY brands. 2GB 4GB and 16GB.
Are the OS X systems involved both similar configurations, or are they very different versions?
Mac Mini is Mountain Lion and has no issues with the thumb drive.
Intel iMac is Mavericks and my Mac Book Pro is Mavericks. Neither one of them can mount my USB sticks.
Thanks for your complete reply, you had some items that I did not try but unfortunately it did not help yet.

HT2801 USB Super drive not working

I have removed the optical drive from my 2008 (late) macbook and added an SSD to run along side the HDD and increased the RAM. I have a super drive to read CD/DVD's but i can not get this to operate?

I believe that the Apple USB Super Drive only works with late model Macs that didn't come with an optical drive. Third party usb drives will work ok though.

USB thumb drive not mounting... hardware or software problem?

I have two systems I'm working with. The first is a MacBook, running 10.5.6 (also Parallels 4 for WinXP). I have no problems here.
The problematic system is a MacPro, running 10.5.6 (and Parallels 4 for WinXP).
Symptoms:
All USB ports function (sort of). I can plug my keyboard in to any port and they work. If I plug a thumb drive in (to any port), it periodically flashes, but never mounts, nor is it visible in Disk Utility or System Profiler.
If I start Parallels with the thumb drive inserted. It asks me what I want to do with the device, and I can tell it to mount on the mac, and it does. If Parallels is already started, then I insert the thumb drive, nothing (Mac OS or Parallels) notices it was inserted.
If I boot Windows directly, then insert the thumb drive, it tells me the port is not a high-speed port, but will still mount the device.
Finally, again, I have no problems with this thumb drive on my MacBook.

Roger
This may be sorted out in the Preferences for Parallel. In the configuration editor>usb option>connection options.
With parallels running does it see the usb in the menu under devices when you plug it in?

USB thumb drive not recognized on nc6120 laptop

I had Windows XP Professional on my NC6120 Compaq laptop. Due to Microsoft saying it was an illegal copy I had to get a different OS. I purchased a Dell Windows 7 Professional and loaded it via the different prompts. Once loaded I had no sound, no mouse, no USB operative. I fiddle fooled around in spite of these assinine sites that say they have the driver you need as though they are legite and all I got was crap loaded that I did not want or ask for. After many hours of trying I finally got some sound recognigition, and the mouse to work. I still have some graphics problems and script problems along with the fact that the computer does not recognize a thumb drive in any of the USB ports. I have tried everything that I could find on the internet and HP, Intell etc and I am at a loss as what to do.
I am not a fan of Microsoft forcing me to upgrade or because of no support to XP anymore but like everyone else I am held hostage to this monopoly.
Can any one help to at least get the USB's to recognize an "E" drive using a thumb drive. Is it possible that this Compaq NC6120 laptop doesn't have the gears to run Windows Professional?
Please help.

Hi:
W7 should work on your model by using some of the Vista drivers from your notebook's support and driver page.
I have no idea why the usb ports aren't working.
Suggest you reinstall W7 and do the following...
1. Install the Intel chipset driver first and reboot.
https://downloadcenter.intel.com/Detail_Desc.aspx?DwnldID=20019&lang=eng&ProdId=816
2. Manually install the Vista graphics driver as follows...DL and run this file. You will get an unsupported operating system error.
http://h20564.www2.hp.com/hpsc/swd/public/detail?sp4ts.oid=447347&swItemId=ob_47264_1&swEnvOid=2094
Go to the device manager and click to expand the Display Adapters category. Click on the standard vga adapter.
Click on the driver tab. Click on update driver. Select the Browse my computer for driver software option and browse to the driver folder that was created when you ran the file. That folder will be located in C:\SWSetup\sp34749.
Make sure the Include Subfolders box is checked and the driver should install. Then reboot.
Audio: Be connected to the internet. Go to the device manager and click on the multimedia audio controller needing drivers. Click on the driver tab. Click on Update driver. Select the automatic search and after a few minutes, Windows update should find, download and install the audio driver.
Wireless: If your notebook has the Intel Pro 2200 B/G, manually install the Vista Intel wireless driver like you did the graphics driver.
Card reader: Use the vista driver from the nc6400.
Wireless assistant. Use the W7 driver from the 6910p
Quick Launch Buttons: Use the W7 driver from the 6910p.
Touchpad: Use the W7 driver from the 6910p.
If you need any other drivers, please let me know.
Oh, and if you don't like all the Dell stuff showing up on your PC, just download this plain W7 Pro 32 bit SP1 ISO file directly from Microsoft, and use the Dell W7 Pro product key on it.
http://msft.digitalrivercontent.net/win/X17-24280.iso Windows 7 Professional x86 English
Then use this tool to transfer the ISO file to a 4 GB USB flash drive or DVD.
The tool will also make the media bootable.
http://www.microsoft.com/en-us/download/windows-usb-dvd-download-tool?ClickID=arovv0vz55a0sszplnnzy...

USB Flash Drive not working

I have purchased a USB FLASH DRIVE v112b 16GB on 26.12.13 from HP
dealer in Agartala. after using 2 months I'm facing problems with it.
Suddenly an error is showing " you need to format the disk before you
use it but format is not possible as another error showing format not
possible. what should i do now with it?
Please solve my issues asap.
Neal

Hi Neal2014,
Welcome to the HP Forums!
I would like to take a moment and thank you for using the forum, it is a great place to find answers. For you to have the best experience in the HP forum, I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I understand that you recently purchased a HP USB drive. You are now getting a message to format it, but are unable to. Have you tried to format it on a different computer?
If you are unable to format the drive, I suggest you call HP support, as I believe it will still be in warranty.
Please call HP technical support at 800-474-6836. If you live outside the US/Canada Region, please click the link below to get the support number for your region. HP Technical Support Sitemap
Sparkles1
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the bottom right to say “Thanks” for helping!

USB Hard Drives Not Working Properly?

I have an MSI K9N Neo V2/V3? (msi-7369) motherboard with 2GB Ram and an Athlon 64 x2 4200+ processor.
I have a strange USB Port problem! I have a 5 year old home built machine running Windows 7 32bit. Lately the USB ports on the front and back of the machine are not working properly with external hard drives? USB powered or mains powered. They are recognised and show all the folders but If I try to view or transfer anything it freezes the drive?
The ports are working fine for USB sticks though?
I have removed the USB controllers and let the system reinstall them again, but its no better?
I would format the drive and reinstall windows but I have not backed-up all my videos I want and my system restore has been disabled?
I have tried a new USB PCI card but the same happens?
I have updated the bios and all updates with the MSI Live update program.
Can anyone recommend anything to try before I start removing stuff?
Someone told me to update my USB drivers but I can't find any?
Any help appreciated

I have formatted and installed Windows 7 64bit and USB's were working!!
Updated and now they don't again?
Its going out the window soon!!
Could the firmware update play a part? Am I able to go back to the older firmware?

Usb HP v250w USB Flash Drive not working

My name is goutam kundu and my new bought usb HP v250w USB Flash Drive is not working and not formatting also.Please provide me some information or to send the service center.

I have the same problem too. (USB was working on windows XP but no longer does but windows 7 is fine. ) I logged a request on the HP website and got an email from [email protected]
they suggested I try (as below)
Please try to use our repair tools (Uifx-I or Uifx-II) that maybe could solve the problem.
The URL: http://www.pny.com.tw/index.php?cls=2&mode=download
If you still can’t working of the USB .
Then will to provide further solutions, thanks.
I eamiled {Personal Information Removed} back with
I"ve used your appicaitona dn it was successful on my windows 7 machine
I've then put the USB into my winxp machine (which I had it working in previously)
and it is not recognised
but it does come up in the computer management section as below
And that was a month ago and I haven't heard from them since. I then emaield them and have had no response. but looking around the internet a lot of complaints exist regarding the v250w.

Usb flash drive not working in iMac

PNY 128gb flash drive is not working in my iMac when I tried to copy.

Did you partition and format it?
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.

USB thumb drives not showing up on desktop.

After updating to 10.4.7 last week, when I insert a USB drive it does not show up on the desktop or in the finder. When I open System profiler and click on USB it shows up there but I have no way to mount the drives.
Is this something that happened to anyone else or am I alone in this?
When I plug in a USB mouse into the ports it works fine so the USB is working, just not mounting the drives. I am able to mount the drives in other macs I have here.
Dave

You might check your Finder preferences and make sure
you're allowing removeable to appear on the Desktop.
Nope checked that and the boxes are all checked.
Tried plugging my iPod in using the USB cable and still does not show up. Does not even show up in iTunes.
Also tried plugging in a firewire drive and that does not mount either. And the iPod also does not mount using firewire.
This is really getting frustrating!!!
Weird thing is it shows up under firewire & USB in system profiler.
Dave
MacBook Pro Mac OS X (10.4.7)

USB Flash drive not working after upgrade.

Its a SanDisk 8GB USB memory stick with the U3 filesystem on it. It works fine on Windows machines and on 10.5, but won't show up as a useable volume in Finder when inserted into my MBP.
Oddly enough, it does show up when I run Parallels - but only in the windows VM. It also shows in Parallels in the list of attached USB devices.
It just won't mount as a volume.
Any ideas?

Hi,
copy anything on your drive to your desktop in parallels then reformat the drive.
There's a good article Here on how to format a drive for Mac and Windows.
Regards

How can I create a Lion USB Thumb Drive with the 11E2068 build?

It seems that the Lion build from the Mac App Store is not compatible with my Macbook Pro Retina 15''. It's seems I would need the the build 11E2068 for my USB thumb drive to work properly.
I don't want to go through the internet recovery and loose 8 hours.
Is there anyway for my to get that build(11E2068) on my USB thumb drive?
Thanks,

keg55's given you article that allows you to capture the installer. These are the critical portions:
Once that data has been downloaded, Lion Recovery restarts your Mac, immediately installs the OS, and then deletes the installer data. The trick is to interrupt that process—safely—so you can grab the installer data and keep it. Here are the steps to take:
IMO, Apple needs to rethink this process. Unless users with machines that had Lion preinstalled, like yourself, let Apple know this process is terrible, they'll not change their minds.
7. IMPORTANT: Monitor the download’s progress. As the progress bar gets near the end, get ready, because once the status reads About 0 seconds remaining, the progress bar will disappear, the installer will spend a minute or two cleaning up, and then your Mac will restart. As soon as the screen goes dark, unplug your external drive. If you wait too long, your Mac will boot into the Mac OS X installer on that drive, starting the installation process. Interrupting that process can leave your Mac unable to install OS X unless you restart it and—I’m not joking—zap PRAM.

Antivirus for USB thumb drive

Hi, I have a macbook at home and I need to constantly use a usb thumb drive between work and home. Work has new policy that I must have an up-to-date usb antivirus scanner in order to use the usb at work (windows). What would be the best free software to install that will run an automatic antivirus scan? Thx

Any viruses you get are going to come from your work PC, not your Mac. Honestly, I wouldn't bother - if the anti-virus software is up to scratch at work, then it should protect your work PC from a USB stick. If it isn't good enough to do that, then it isn't good enough to protect itself from the internet either.
http://youtu.be/IglUmgYGxLM?t=1m33s
Are they going to check? If you absolutely must, ClamXav gets the best reviews.
http://www.clamxav.com/

OS X lion USB Thumb Drive - will this work on new Mac Mini or MBA (2011)?

Hi All,
Not to be confused with the other similar posts, I am interesting in only clarification of what build comes with the USB Thumb Drive now available on Apple Store - will this work with new MBA and Mac Mini?
Thanks,

KeanuReeves wrote:
From what I have read about the usb installer, it is not intended for you to try booting from the stick after wiping your hard drive. You are to click on the installer
You may be correct, but this statement is quite confusing in that context:
Important Note
When you install OS X Lion using the USB thumb drive, you will not be able to reinstall OS X Lion from Lion Recovery. You will need to use the USB thumb drive to reinstall OS X Lion.
So, if the Thumb drive is supposed to take the part of the Recovery partition, it seems that it should be able to boot. However, the license agreement still requires an Apple computer running Snow Leopard, so maybe it isn't bootable.

USB thumb drive not working

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