|You cannot increase video RAM for the Intel HD 4400 by any method other than going in to BIOS Setup.|
The HD 4400 doesn't have any video RAM of it's own, it uses system RAM (shared memory).
The more shared RAM you allocate to the HD 4400 (in the BIOS settings), the less system RAM will be available for Windows, applications & games, so you are actually "robbing Peter to pay Paul" in effect.
What you really need to do is install a PCIe gaming card which has it's own VRAM on the card, usually 2GB or 4GB depending on the card you buy.
Trying to play games like GTA with integrated graphics (the HD 4400) is a waste of time, you need a PCIe gaming card.
message edited by phil22