Dick uses Google Earth on more than one PC. He asked how to sync placemarks between them. Oddly enough, Google’s extensive cloud services don’t do much for Earth (the program, not the planet ...

2 – Sync it to another application If you use Dropbox or Google Drive, you can save your file in there, open that application on your mobile device, then have it open the KMZ file with Google Earth.

One way or another you need to save the file and have a way to transfer it to the new computer. Step Two: Transfer that KMZ file to your other computer.