To remove the EW4 Client Application from a computer you need to:
1. Open Control Panel > Programs and Features (or Add/Remove Programs in Windows XP)
2. Uninstall Ear Works 4 Client
3. Uninstall Microsoft Access 2007 Runtime
If you wish to install the application again please follow the instructions posted in this article. It's best if you restart the computer between removing and reinstalling the application.