Plug the USB which is not showing up to your Mac computer. Press Command+Option+Esc keys to close all applications that are not responding. Restart Mac computer, press the Command +Option+P+R keys until the Apple logo appears. Reset USB ports on Mac to detect a USB drive Click “USB” on the left panel, and you can also check the USB flash drive information.įix 5. Check if the system detects the USB drive. Go to Applications > Utilities > System Information. When you cannot find the USB drive on the desktop or in the Finder, try to look for it in the System Information section, which is usually a hidden place for average Mac users.

Check the USB drive in System Information

By selecting this option, we can make sure that the connected external USB hard drive or flash drive will normally show up in the Finder.įix 4. If your flash drive or external hard drive is not showing up there, go to Finder > Preferences > Sidebar, and under Locations, you need to tick the option “External disks”. Change settings for Mac recognize an external hard disk in the Finderįinder is the other access for us to check a connected external drive on Mac. Then you’ll see the USB flash drive showing up on Mac desktop.įix 3. Thus, you should go to Finder > Preferences > General and make sure the “External disks” option is ticked. Occasionally, your Mac has already recognized the USB flash drive but not shown it on the desktop. Change settings for Mac detecting an external hard disk on the desktop Change the USB-to-Mac connection port.įix 2. If you come across the situation that no matter how many times you try to connect the USB drive with a Mac computer, the USB drive is not showing up anywhere, please try with below methods.įix 1. Commonly, when you insert a USB drive in the USB port on a Mac computer, the drive will soon appear on the desktop or hide in the Finder, letting you access, view, and manage data on it.

Mac not detecting usb drive