How to remove Vijeo Citect service packs from the computer.
For uninstalling a service pack first backup your Citect .INI file.
Then go to Start -> Control panel -> Add or Remove Program.
Make sure “Show Updates” check box is checked at the top. Now search for Vijeo Citect,
refer below image where you will be able to see the installed service pack .
There you find the the uninstall option . Uninstall that service pack as shown below :