If Data Recovery Wizard Professional is already installed on your computer, you must uninstall your old version before installing a new one. Here's how to do so:

Make sure that Data Recovery Wizard Professional is not running.

On the Windows Start menu, go to Start > Programs > Recovery-Soft Data Recovery Wizard Professional 4.3.6 > Uninstall Data Recovery Wizard Professional 4.3.6.

Click "Yes" to confirm the Uninstall. Data Recovery Wizard Professional will be completely removed from your computer automatically.

If this item is not available, you can remove Data Recovery Wizard Professional as follows:

1. Click "Control Panel", and then double-click the "Add or Remove Programs" icon.
2. Click Data Recovery Wizard Professional, and then click "Remove".
3. Click "Yes" when the confirmation dialog box appears.
4. Follow the on-screen instructions.