You can download the latest drivers for directly from the official Intel Download Center . Because this hardware is now considered "End of Life," new feature updates are no longer released, but you can still access the final stable versions. Official Download Options
Download from the Intel Support page for legacy 4th generation platforms. Automatic Tool: skachat draiver dlia hd 4600
The correct driver version depends on your specific operating system: Version: 15.40.7.64.4279 (or similar 15.40 series). You can download the latest drivers for directly