Yes, it is possible to uninstall and reinstall a scanner driver in Windows, although the exact process for doing so varies depending on the version of Windows in use. Generally speaking, the first step is to disconnect the scanner from any power source and from the computer, if necessary.
On Windows 7 and 8
1. Open the Control Panel and select “Device Manager” from the list of options.
2. Expand the “Imaging Devices” category and locate the scanner driver. Right-click on the name of the driver, then select “Uninstall” from the context menu.
3. When prompted, check the box to confirm that you want to uninstall the driver.
4. Return to the Device Manager and click the “Scan for hardware changes” button.
5. When prompted, insert the CD that came with the scanner, or else locate the appropriate driver files on the internet. Follow the instructions provided by the driver setup wizard to install the scanner driver.
On Windows XP
1. Open the Control Panel and select “Add or Remove Programs” from the list of options.
2. Locate the name of the scanner driver in the list of installed programs, then select it and click the “Remove” button.
3. Return to the Device Manager, select the scanner driver, then right-click and select “Uninstall” from the context menu.
4. When prompted, check the box to confirm that you want to uninstall the driver.
5. Return to the Device Manager and click the “Scan for hardware changes” button.
6. When prompted, insert the CD that came with the scanner, or else locate the appropriate driver files on the internet. Follow the instructions provided by the driver setup wizard to install the scanner driver.