Start a new scan

Follow the steps below to find all duplicates and similar files on your Mac:

1. Add scan locations.

Do any of the following to add a scan location:


Note: If you have an App Store version of Gemini 2, you’ll need to grant it access to your Home folder before the first scan. It’s a standard safe macOS requirement for all applications. Also, note that Gemini 2 does not support iPhoto libraries (as well as Aperture and Lightroom).


2. Add more locations to scan: Click (+) and navigate to a folder, library, or drive you want to scan (including external drives). Or, just drop additional folders onto the Gemini window.

3. Start scanning: Click Scan for Duplicates.

If you want to speed up scanning, you can disable similar files search in Gemini 2 Preferences. Alternatively, you can choose another location or increase the size of files that must be analyzed (on the General tab of Gemini 2 Preferences, choose an appropriate file size from the ‘Minimum file size’ list).

To stop scanning: Click Stop on the scan progress screen.

To discard scan results: Click Start Over to go back to the start screen and discard current scan results.

See also: