To uninstall the iQO2 from your computer:

1. Open Programs and Features by clicking the Start button Picture , clicking Control Panel, clicking Programs, and then clicking Programs and Features.
2. Select the iQO2 program, and then click Uninstall
   Administrator permission required If you're prompted for an administrator password or confirmation, type the password or provide confirmation

If you have still problems to unistall iQO2, go to
http://support.microsoft.com/mats/program_install_and_uninstall/

1. Select Detect problems and let me select the fixes to apply
2. Choose Uninstalling
3. Select iQO2 from the list and click Next
4. Choose Yes, Try uninstall, click Next
5. The tool is fixing the problem.

To reinstall iQO2 on your computer, download it again:
http://www.physiomed.be/download/_iqo2/setup/iqo2setup.exe