Usb flash drive problems mac

Select the device from the list the entry with the mfgr.

How to access an external drive that's not recognized on a Mac

Select One partition from the Partition drop down menu. Click on the Partition button. Test the device on each platform. Reply Helpful Thread reply - more options Link to this Post. I tried the post you wrote me, and it still doesn't work. I've got another error that I forgot to write in previous post. I cannot copy folders from Mac to USB. Error occurs.

How to fix an external disk drive that won't show up on a Mac

Error says, The Finder can't complete the operation because some data in 'folder name" can't be read or written. All of these can generate the error. Also I can copy them one by one, but not as a folder.

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Names are correct, files are no bigger than 1GB. Everything is FAT32 standard. The error often occurs because of one or more of the reasons i mentioned previously. And, it does not seem uncommon that the files can be copied individually but not a folder of files. I don't know why this happens unless it's a problem with the way in which the drive has been prepared. Open Disk Utility in your Utilities folder.

Mac USB Ports Stopped Working? It’s Likely Easy to Fix

After DU loads select your hard drive this is the entry with the mfgr. Click on the Partition tab in the DU main window. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Partition button and wait until the process has completed.

What You Need

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. Click on the Erase button. The format process can take up to several hours depending upon the drive size. The device should work on both platforms if the Windows machine is running Vista or Win7.

Not sure about XP. Yes it worked. I could see the files I copied from Vista on Mac. It's possible that the problem is a defective OS X system, but to test that would require erasing the drive and reinstalling from scratch. I would suggest you search the forums for "error 36" since this issue has been raised many times. You may find a solution in another thread. Message was edited by: Kappy. I'll wait for someone who might know. You might know. Thanks again. User profile for user: Dick Dastardly Dick Dastardly.

Mac OS X Speciality level out of ten: 0. Once deleted you should be able to format it FAT 32 without any problems. I could use the drive normally until few days ago. Thank you. User profile for user: Txau-me Txau-me. Replace 2 with the disk number of your USB flash drive.

Step 4: Type: diskutil list and press Return. When the USB disappear from the Terminal list, close the window. After that, your USB will be detected and work again after the operations above. There, you can open the USB, check and use all existing files on the drive again. Also, some of the above solutions Fix 3 and Fix 4 may also cause file loss when you apply to fix this error without awareness.


For example, USB drive becomes inaccessible or files disappear. If you are having file loss issue on the USB flash drive, follow Part 2 and you'll find a perfect data recovery resolution on USB flash drive. If Mac computer can read the USB drive but is unable to open the drive or the device got formatted, the data is still recoverable. This tool recovers photos, videos, documents, and music from your Mac hard drive and external storage devices in only three steps.

Solved: USB Flash Drive Not Showing Up On Mac

Step 1. Correctly connect your USB flash drive to your Mac. Start selecting the flash drive and click Scan to let the software search lost files on it. Step 2. After quick scan and deep scan, all files will be presented in the left pane in the scan results. Step 3. Select files you want to recover and click Recover Now button. Don't save the recoverable files to the USB drive itself in case of data overwriting.

If you still have problems, feel free to contact us and ask for further assistance by emailing us: support easeus. Tracy King - To back up and restore Outlook for Mac are easy now. Fix Word Not Opening on Mac.

Why is USB Flash Drive Not Detected or Recognized on Mac?

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