To the right of the list item, click the Uninstall button and Boost will completely remove Updater Service from your PC.
How to Manually Uninstall Updater Service (with Windows)
Use Add/Remove Programs control panel in Windows makes to uninstall Updater Service. Follow the appropriate instructions below to use this control panel.
Windows 7
From the Start menu, select Control Panel.
In Large or Small icon view, click Programs and Features. If you're using Category view, under "Programs", click Uninstall a program.
Select Updater Service from the list of programs, and click Uninstall. Alternatively, right-click the program and select Uninstall.
Windows Vista
From the Start menu, select Control Panel.
In Classic View, double-click Programs and Features. In Control Panel Home view, under "Programs", click Uninstall a program.
Select Updater Service from the program list, and click Uninstall. Alternatively, right-click the program and select Uninstall.
Windows XP
From the Start menu, select Control Panel.
Click the Add or Remove Programs icon.
Select Updater Service from the list of programs and click Remove.