The 8440p uses Intel HD Graphics or NVIDIA NVS 3100M. For Intel, use the "Intel Graphics Media Accelerator HD" driver.
If Windows Update fails to find specific hardware, you can use the Windows 7 or 8 64-bit drivers. Run them in if the installer blocks you. hp elitebook 8440p drivers windows 10 64-bit download
Search for "Intel Chipset Device Software for Windows 7 (64-bit)." This stabilizes the motherboard communication. The 8440p uses Intel HD Graphics or NVIDIA NVS 3100M
Before downloading anything manually, let Windows do the heavy lifting. Run them in if the installer blocks you
The most common yellow exclamation mark in Device Manager for this laptop is the . Look for HP 3D DriveGuard software. Download the version meant for Windows 8.1 64-bit.
Check and select Windows 7 . Click Apply and run the installer as Administrator. Summary Table for Search Source Recommendation Video/GPU Windows Update / Intel Legacy Archive Audio (IDT) HP Support (Win 7 64-bit) Wi-Fi/Bluetooth Intel PROSet/Wireless Software Card Reader Ricoh Media Card Driver Fingerprint Validity Sensor Driver To help you get the exact files, let me know: Does your 8440p have Intel Graphics or NVIDIA Graphics ? Are you missing a specific function, like Wi-Fi or Sound ? Do you see any "Unknown Devices" in your Device Manager?