Also applies to your current computer if the hard drive was wiped/replaced.

1. Open Google Drive on the new computer.

2. Locate the backup on the left side of the screen, control-click on it, and rename to "OLD Computer" for easy identification.

Before	After

3. Click on your newly renamed "Old Computer" 

4. Please download each individual folder within your "Old Computer" back up (desktop, documents, etc) > On the right side of the screen control-click on the folder you want to download, and select "download" from the menu that appears.

5. Google will create a zip file of the folder and download it to your computer (Download Folder).

6. Click on the arrow next to the zip file name and tap "Show in Finder". 

7. Drag the zip file to the desired location on your hard drive and double click to open it. (move desktop folder contents to your Desktop, move your Documents content to the documents folder on your computer etc).

8. Set up Google Drive for desktop on your new computer