HP OFFICEJET 4500 - Manual (Page 209)

4. Restart your computer.
NOTE: It is important that you disconnect the device before restarting your computer. Do
not connect the device to your computer until after you have reinstalled the software.
5. Start the Setup program for the device again.
6. Select Install.
7. Follow the onscreen instructions.
To uninstall from a Macintosh computer, method 1
1. Launch the HP Utility. For instructions, see Open the HP Utility.
2. Click the Application icon on the toolbar.
3. Double click HP Uninstaller.
Follow the onscreen instructions.
4. After the software is uninstalled, restart your computer.
5. To reinstall the software, insert the HP Software CD into your computer's CD drive.
6. On the desktop, open the CD, and then double-click HP Installer.
7. Follow the onscreen instructions.
To uninstall from a Macintosh computer, method 2
1. Open the Finder.
2. Double-click Applications.
3. Double-click HP Uninstaller.
4. Select your device, and then double-click Uninstall.
Uninstall and reinstall the software 205