HP Deskjet 3450 driver download grátis (ver. N/­A)

deskjet 3420 series printer software uninstall USB scrubber updated utility for HP Deskjet 3450 Type: Utility Deskjet USB Supplemental Uninstaller- HOME USERS/­COPORATE USERS - FOR USB CABLE ONLY(American English) Use this utility when: The USB driver installs part way,­ then the driver will not install.­ The Add New Hardware Wizard will not appear or one of the following conditions will occur.­ After selecting Finish on the Add New Hardware Wizard during a USB install,­ the HP Printer Driver Installation screen fails to appear.­ Plugging in the USB cable causes the Add New Hardware Wizard to appear on the screen briefly.­ The USB port driver loads,­ and the Printer Driver Installation screen fails to appear.­ There is no interaction required from the user in this scenario.­ After printing successfully with the printer installed on the USB port and then uninstalling the printer driver,­ attempts to reinstall it fail.­ Information: The computer will not recognize the printer a second time (as described above) because during the first installation keys and folders are put into the computer's registry.­ The uninstaller on the installation CD will not delete these keys and folders that refer to the printer,­ therefore it appears to the computer that the printer is installed and will not allow it to be installed a second time.­ These printer entries in the registry need to be deleted.­ HP has developed an uninstaller utility that will delete all of the unnecessary printer references from the registry.­ Instructions for running the USB Uninstall Utility from the Web site: Unplug the USB cable from either the printer or the computer.­ Click the Download Now button.­ The next screen should have a dot in the button next to "Save this program to disk",­ if not,­ select it.­ Click OK.­ In the Save in field,­ click the arrow to see the dropdown menu,­ select Desktop.­ Make note of the name in the File Name field.­ Click Save.­ The file will be save to the Windows Desktop.­ Close the web browser.­ When the Desktop appears,­ double click the xxx.­exe file just saved to the Desktop.­ In the Unzip to folder field,­ click the Browse button to see the drop down menu,­ select Desktop,­ and click OK.­ Click Unzip.­ A message "2file(s) unzipped successfully" will appear.­ Click OK Close the Winzip Self Extractor window.­ Find the new HP icon on the Desktop labeled scr_­xxx.­exe.­ (xxx will be the model number of the printer.­ Double click the HP icon.­ This will only take seconds.­ Click Yes when asked "Do you want to restart your computer now?­" The computer will restart.­ The printer may now be reinstalled by carefully following the set up instructions from the setup poster,­ the manual,­ or the web.­