To get started, click the blue link at the bottom of this page for your operating system. When you reach the download page, click the green download button near the top of the page. The download button will include a box with an arrow in it. Your download should begin immediately.
When the download is complete, open the installation file. The Installation Wizard will walk you through the installation process. Click the Next button to complete the process. I suggest using Disk Drill's default settings and file location.
When the installation is complete, you'll see a shortcut for Desk Drill on your desktop. Mac users can find the program in the Applications folder. Just double-click on the icon to get started.
Disk Drill will show you the available drives you can scan. Just click the "Recover" button next to the drive to prompt the program to reassemble lost data. You can also use the arrow next to the Recover button to run specific functions like a Quick Scan or a Deep Scan.
Now, there is no replacement for having a great backup. Hard drives fail. They just do and usually, without any warning.