A:
"The My Passport Ultra drive is formatted as a single NTFS partition for compatibility with all updated Windows operating systems.
As for the backup, the drive is compatible with the WD Smartware Backup Software. The WD Smartware Software does not backup operating system files. However, you are able to backup personal files such as music, movies, pictures, etc. With the WD Smartware, you can back up more than one computer. Also, the WD Smartware Software has a Retrieval function that will allow you to retrieve data backed up from a computer onto another computer. To differentiate the backups from different computers it creates different backup volumes.
You can get more information and details of the My Passport Ultra and WD Smartware on the following link:
http://wdc.com/en/products/products.aspx?id=1000"