Install
Make sure that you have closed WorkTime before installing, otherwise new WorkTime version will not be installed.

Uninstall
You can uninstall WorkTime using standard Windows tools. Go to Start|Settings|ontrol Panel|Install and Uninstall Programs, find WorkTime in the list of applications, select it and click Add/Remove button.
Make sure you have closed WorkTime before you proceed with uninstall, otherwise some files and registry settings will not be removed.


See also What is WorkTime, How to buy WorkTime