How to Recover Lost Files from Unmounted USB Flash Drive on Mac
Summary
When an USB Flash Drive becomes inaccessible, invisible or unrecognized on your Mac computer, please check it in system information, Finder Preferences and Disk Utility. If it shows as unmounted, you'll need to mount the USB flash drive and make it recognizable. If Disk Utility fails to repair the USB flash drive due to file system corruption, you can fix the unmountable USB flash drive by reformatting. However, reformatting will erase all files stored on the USB flash drive. You can restore lost data from unmounted USB flash drive with Mac USB Flash Drive Data Recovery Pro software before you reformat the USB flash drive or external hard drive.
Why My USB Flash Drive or External Hard Drive Won't Mount on Mac
Here are some possible reasons which make your USB flash drive or external hard drive unmounted on Mac.
Faulty Thunderbolt or USB Port;
File system corruption, volume header corruptions, etc.
Disk Utility failure, log file corruption, OS malfunction on Mac;
Physical damage and other factors
Data recovery Software for Recovery Data from Unmounted USB Flash Drive on Mac
Mac USB Flash Drive Data Recovery Pro can help you restore all lost files from the unmounted USB flash drive or unmounted external hard drive on your Mac computer. It can recover existing, deleted, formatted or inaccessible data from the unmounted USB flash drive on Mac.
How to Recover Lost Files from Unmounted USB Flash Drive on Mac
Download and install Mac USB Flash Drive Data Recovery Pro on your Mac. Connect the unmounted USB flash drive or external hard drive to Mac computer and then run the software.
Step 1 Choose a Recovery Mode
Select a data recovery mode and click "Start".
Step 2 Select the Unmounted USB Flash Drive
Select the Unmounted USB Flash Drive under External Devices and click "Scanning".
Step 3 Recover Lost Data from Unmounted USB Flash Drive
After the scanning process, select found files and click "Recovering" button to save them on your Mac computer.
