How to Hook Up a Second Monitor on an HP TouchSmart Computer. The HP TouchSmart line of computers features a touch screen and an all-in-one design that's comparable to tablets.

Click the "Extend" option. Windows displays a new empty desktop screen on the external monitor. Use the mouse to drag and drop icons or windows from the laptop display to the external monitor as ...

HP Envy 34 All-in-One PC Review: One Size Fits Some One of the few big screen all-in-ones delivers on the looks and features but disappoints -- like many AIOs -- in speed.