The logo actually does something while it appears. It optimizes the computer usage. However, since it isn't mandatory to have it installed, go to System Tray and right click the "e" icon. Go to Preferences and disable its startup when computer boots. Additionally, if you want it off your computer, Go to Start > Search > Uninstall a program and locate it in the list. Click Uninstall, follow the uninstall procedure, then reboot the computer and it should be gone.