Step 1: Go to Utilities, find Disk Utility and run this program. First Aid is a built-in tool in macOS to repair disks error, you can try out it. Removing it and restarting the finder will generally fix things. On the left side selectUSB If you see Flash Drive listed under the USB hub the USB flash drive is detected properly. If your USB drive has a corrupted file system that is unrecognized by the operating system, files are not showing the USB flash drive.
![cannot read my usb flash drive mac cannot read my usb flash drive mac](https://cdn.windowsreport.com/wp-content/uploads/2016/12/USB-drive-stops-working-on-a-TV.jpg)
![cannot read my usb flash drive mac cannot read my usb flash drive mac](http://www.macyourself.com/wp-content/uploads/2008/10/100308-usbreformat-screen1.jpg)
The second set of instructions presumes that the Finder preferences file has somehow gotten botched. If disabled, you'd see absolutely nothing happen when you inserted an USB disk (hard disk or thumb drive). The first set of instructions merely enables the disk appearing on the desktop and in the Finder. In summary, when your external hard drive, memory card, pen drive or USB flash drive is on longer readable by computer, you can try methods presented above to get it fixed. Solution 3: Check and repair bad sectors for the unreadable USB with DiskGenius Free edition.
#CANNOT READ MY USB FLASH DRIVE MAC MAC OS#
When Map Downloader wants to access the USB drive, Mac OS should pop up a dialog asking you to grant or deny permission. In short, it looks to be some kind of permissions issue.
#CANNOT READ MY USB FLASH DRIVE MAC UPDATE#
Select the menu item "Finder > Preferences."Ĭheck the box marked "External Disks" under "Show these items on the Desktop:" (if already checked, uncheck, then check again)Ĭlick on the box next to "External Disks" under Devices (if already checked, uncheck, then check again)įinally, if that doesn't fix it, do the following: in your home directory, find the file Library/Preferences/ and drag it to the Trashcan, and then hold down the "option" key while clicking on the Finder icon in the dock and select "Relaunch" from the pop-up menu. Solution 2: Format the USB drive in Disk Management. 'USB drive cannot be formatted' trying to update my 2022 Legacy. Dont use the Sandisk as media creation tool doesnt compatible with Sandisk.
![cannot read my usb flash drive mac cannot read my usb flash drive mac](https://www.howtogeek.com/wp-content/uploads/2021/06/apple_windows_usb.jpg)
If you still have no luck, you might have to purchase a new USB drive thats a different brand. Right click on Windows Start > Device Manager > Click the topmost entry i.e. Because Windows 10 creation tool wont wont recognize any usb 2.0 flash drives, so, you can try to update your USB drive via the device manager. Click on the Finder icon on the dock (stylized blue smiley face). Assuming that there is no hardware problem with your drive - 1.