Product Information. The HP b09wm Notebook with Windows 8 is a good all-around mobile laptop for those always on the go. If you are a. Notebook HP b09WM - cheapest inch laptop to surf the web. Notebook HP b09WM is equipped with a dual core AMD E-Series E clocked. HP Laptop b09WM AMD Dual-Core Processor E ( GHz) 2 GB Memory GB HDD AMD Radeon HD " Windows 8.