Windows defender error
http://support.microsoft.com/kb/931849
Open IE and go to Tools>Internet Options>Advanced Tab>Browsing section and be sure both script debugging boxes are checked, hit OK. This should stop the script error notifications.
Download the latest version of the Verizon software to a location that is easy to find, then go go to control panel>programs and features and uninstall the verizon software.
Reboot the PC
Now reinstall the software by right clicking on it and select run as administrator.