: For power users who need the complete HP software suite (including HP Scan), download the standalone installer directly from the HP Software and Driver page .

: This is the primary tool for most users. It automatically detects your printer, installs the necessary drivers, and offers integrated scanning and ink management. Get it from HP Smart - Microsoft Store or the HP Support Portal .

The driver situation for the HP 4645 is stable, but it has transitioned from traditional "download and install" files to HP's modern "Smart" ecosystem.

The is a versatile multifunction printer designed for home offices and small businesses. To ensure your printer functions correctly, you must install the appropriate HP Deskjet Ink Advantage 4645 drivers for your specific operating system. Driver Download & Compatibility

If you own this printer today, here is my recommendation:

Here is a review breakdown of the HP Deskjet Ink Advantage 4645 drivers and software experience.

Since the is an older printer model (released roughly around 2014-2015), a review of its "drivers" is less about a new software feature set and more about reliability, installation ease, and OS compatibility.