Symantec Backup software fails to complete installation process

Hello,
I was installing the Symantec Backup software on my computer and the installation process went okay until some point when an error popped up as shown in the image below. Any suggestions?
Error 1704. An installation for Microsoft SQL Sever 2005 Express Edition is currently suspended. You must undo the changes made by the installation to continue. Do you want to undo those changes?
