Installation Was Interrupted Universal Restore Acronis My Yahoo Messenger Will Not Start Up, And I Can't Reinstall It Because The Download Is Interrupted. Help?

My Yahoo Messenger will not start up, and I can't reinstall it because the download is interrupted. Help? - installation was interrupted universal restore acronis

Getting to the point, had left when I install, but about 5% or 6% it stops and says the installation will be terminated or suspended. I never canceled the download, and I was not running anything to stop it. What must I do to reinstall the program?