The all new modern ultra-slim design of the HP ProBook 645 delivers efficiently powerful performance, enterprise-grade security and manageability and flexible configuration options.Ideal for professionals in corporate settings or small to medium businesses, wanting an affordable combination of innovation, essential security and multimedia capabilities Windows 10 or other operating systems available Updated ultra-slim design The precision-crafted ultra-slim chassis in a modern natural silver finish is designed to pass MIL-STD 810G testing and supports several HP docking options for gradual transitions to modern docking solutions. Efficient performance Take on your work with an efficiently powerful, highly secure, and reliable AMD Ryzen™ PRO processor with Radeon™ Vega graphics designed for a highly responsive experience that helps secure your data, device, and identity. Built on a secure foundation Protect your PC against the evolving malware threats of the future, with self-healing, hardware-enforced, and manageable security solutions from HP. From the BIOS to the browser HP Sure Start Gen4 and HP Sure Click help secure your PC. Windows 10 or other operating systems available