Can I upgrade my lenovo laptop so play games like gta 5 and advance warfare?

The most important part of it, the Graphics Processor, is generally not upgradable.
With a full model number for the laptop, it can be checked whether there's any upgrade potential.
Desktop-towers are generally upgradable, and that is what the games are designed for.
Depending on exact info, increasing ram could improve it a bit.
Iobit Game Booster, Here, and as a standalone at Major Geek and a few other sites, focuses settings to maximize their ability
http://www.iobit.com/en/gamebooster.php