Need to reinstall & set up WD software after PC crash - Help?

Had to reinstall windows and need to set up my passport ultra software again, so I can continue using it to back-up my PC.
A) where can I find software to reinstall.

B) After installed, will it start a new back-up on passport, or can I just continue with the one already saved on there? (my PC is the same & fils structure is the same)

Hello, fransafe

In order to install the new version of the software, please go thru the given link.

After installation of the software, you have to configure the software again, Once it is done it will start to take the backup on the drive.