Create a new folder on the hard drive: c:\dj845 before downloading the printer driver.
Download the driver to the newly created c:\dj845 folder.
Open the c:\dj845 folder and double-click on the downloaded "exe" file. Once the files are loaded and the "hp deskjet 845c" screen displays, proceed to step 6. If this screen does not display, continue with the next step to manually open the screen.
Open the c:\dj845\Win2k folder.
Double-click on the "setup.exe" file to start the installation program.
Click the "Install printer software" icon button. Files will now be loaded.
Follow the instructions