Yeah.

To format your hard drive for your Mac, plug in your drive and open finder in finder.

Click applications scroll down to utilities.

Yeah, choose disk utility in the pain on the left of the disk utility window, click the drive.

You want to format at the top of the window.

Click erase.

Choose the file system you want to use.

Usually you'll want X fat, which is the default for Mac OS but can also work on PCs.

Now click.

Erase.

Yeah.

Mm mm.