c. Disconnect the power cord from the back of the product. d. Reconnect the power cord to the back of the product. e. Press the On to turn on the product.

2.Uninstall the software completely.

NOTE: It is important that you follow the uninstall procedure carefully to ensure you have removed the software completely from the computer, before reinstalling it.

To uninstall the software completely

a. On the Windows taskbar, click Start, Settings, Control Panel, (or just Control Panel).

b. Double-clickAdd/Remove Programs (or click Uninstall a program). c. Remove all the items that are related to the HP scanning software.

CAUTION: If the computer is manufactured by HP or Compaq, do not remove any applications other than those listed below.

HP Imaging device functions

HP Document Viewer

HP Photosmart Essential

HP Image Zone

HP Photo and imaging gallery

HP Photosmart, Officejet, Deskjet, (with product name and software version number)

HP Software update

HP Share to web

HP Solution Center

HP Director

HP Memories Disk Greeting Card Creator 32

d. Go to C:\Program Files\HP or C:\Program Files\Hewlett- Packard (for some older products) and delete the Digital Imaging folder.

e. Go to C:\WINDOWS and rename the twain_32 folder to twain_32 old.

3.Turn off programs that run in the background.

NOTE: When the computer is turned on, a software group called the Terminate and Stay Resident (TSR) programs automatically loads. These programs activate some of the computer utilities, such as the anti-virus software, but are not required for the computer to function. Occasionally, TSR's prevent the HP software from loading so that it does not install properly. In Windows Vista, Windows XP, and Windows 2000, use the MSCONFIG utility to prevent TSR programs and services from starting up.

Troubleshooting

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HP F4240, F4280, F4235 manual To uninstall the software completely