Driver for HP Deskjet 3645
Table of Contents

The official driver for the HP Deskjet 3645 printer is essential for the initial connection to a computer and when reinstalling the Windows operating system. This driver enables the system to recognize the printer for subsequent use, configuration, and printing. The installation process is automated and should be straightforward; however, it is important to restart the computer afterward to apply the changes.
You can download the driver for HP Deskjet 3645 compatible with your operating system version from the table below. We recommend reviewing the installation instructions after the download.
Download Driver for HP Deskjet 3645
OS Versions: Windows 11, Windows 10 32-bit, Windows 10 64-bit, Windows 8.1 32-bit, Windows 8.1 64-bit, Windows 8 32-bit, Windows 8 64-bit, Windows 7 32-bit, Windows 7 64-bit | |
Driver Type | Download |
HP Print and Scan Doctor for Windows | |
HP Deskjet Full Feature Software/Driver: USB Connection |
On this page, you can download the HP Deskjet 3645 driver! Free downloads are available for Windows, Linux, and Mac operating systems.

How to Install the Driver for HP Deskjet 3645
- Download the driver from the table based on your version of the Windows operating system.
- Run the downloaded file.
- Accept the “License Agreement” and click “Next.”
- Specify how to connect the printer to your computer and click “Next.”
- Wait for the installation to complete.
- Restart your computer to apply the changes.


Before installing the driver, make sure that no other version is installed on your computer. If one is, please uninstall it prior to installing the new version.
Common Errors and Solutions During Driver Installation
- Printer Detection Issue: If the device is not found, we recommend downloading a different version of the driver.
- Printing Problems: If the printer does not print after driver installation, ensure you have restarted your computer.
- Unable to Launch the Driver File: If the file does not open, check your system for viruses, then restart and try again.