Backup won't start

I have been running WD Smartware on a PC Windows XP for several months. Now, when I attempt a backup, after the software completes categorizing my files, and I select the files to backup, nothing happens when I press Run Backup. If I press pause backup, the popup asks if I want to cancel or continue, but continue again does nothing. There is plenty of room on the drive (only 3% used).

You might need to reinstall the WD Smartware. Uninstall the software:

After uninstalling the software, restart your computer and click on the virtual CD, look for WD Smartware and reinstall the software.