Uniquely designed for the modern mobile professional, the HP EliteBook 840 is a highly secure and manageable PC offering powerful collaboration tools, enabling the enterprise workforce to be more productive and secure on the go or in the office.Features Windows 10 or other operating systems available Brilliant design Balance design, power, and mobility with this ultraslim distinctively designed aluminum laptop with a narrow border display. This light and compact PC is built for the professional who requires top performance while on the go. Built on a secure foundation Protect your PC against the evolving malware threats of the future, with self-healing, hardware-enforced, manageable security solutions from HP. From the BIOS to the browser HP Sure Start Gen5 and HP Sure Click help secure your PC. Crystal-clear collaboration Calls sound clear and crisp with advanced collaboration features like HP Noise Cancellation. Loud top-firing speakers produce rich sound. The world-facing third microphone and collaboration keys help make PC calls productive.