OfficeOne welcomes users of Multi-Slides Presentation +. Registered users of Multi-Slides Presentation + 1.0 and 1.1 can upgrade to OfficeOne Slide Show Duo 2.0 for free. Upgrading requires uninstalling the previous version and installing the new version. The steps are as follows:

Steps for Microsoft Windows 8:

1. Make sure Microsoft PowerPoint is not running.
2. Click Control Panel app in Start screen.
3. Click Uninstall a program link under the Programs section.
4. Locate and select Multi-Slides Presentation + from the list of installed programs.
5. Click Uninstall button and follow the instructions for uninstalling Multi-Slides Presentation +.
6. Download and install OfficeOne Slide Show Duo 2.0.

Steps for Microsoft Windows 7 and Microsoft Windows Vista:

1. Make sure Microsoft PowerPoint is not running.
2. Select Windows Start | Control Panel menu item.
3. Click Uninstall a program link under the Programs section.
4. Locate and select Multi-Slides Presentation + from the list of installed programs.
5. Click Uninstall button and follow the instructions for uninstalling Multi-Slides Presentation +.
6. Download and install OfficeOne Slide Show Duo 2.0.

Steps for Microsoft Windows XP:

1. Make sure Microsoft PowerPoint is not running.
2. Select Windows Start | Control Panel menu item.
3. Launch Add/Remove Programs.
4. Locate and select Multi-Slides Presentation + from the list of installed programs.
5. Click Remove button and follow the instructions for uninstalling Multi-Slides Presentation +.
6. Download and install Slide Show Duo 2.0.