How to scan a drive for errors in macOS

On Apple desktop and laptop computers, there is a disk utility called First Aid. This feature can scan for and repair errors on storage devices such as an HDD (hard disk drive) or SSD (solid-state drive). To learn how to find and correct errors on your storage devices in macOS, follow the steps below.

How to scan a drive for errors in macOS

1. Navigate to the macOS desktop, then press Command+Shift+U at the same time.

2. In the Utilities window that opens, double-click the Disk Utility icon.

3. In the window, on the left side, under Internal, select a device or volume to scan. Then, click the First Aid icon located at the top of the right section.

4. In the prompt, click the Run button to confirm your choice.

5. Click the Continue button in the next prompt.

6. Another prompt appears showing the progress of the First Aid scan on the device or volume.

7. When finished, click Show Details to see more information about the scan. If nothing is wrong with the drive or volume, click the Done button to exit the scan.