The Lenovo IdeaPad 3 14 Laptop, model number 81W0009DUS, ships with Windows 10 S-Mode 64-bit Operating System. Windows 10 S-Mode provides added security by only allowing APPs available ( and therefore certified by Microsoft) at the Microsoft Store. If you don't need the added security or you need to install APPs not available at the Microsoft Store, you can switch to standard Windows 10 Home 64-bit Operating System, at no additional cost.

That will depend on the requirements and compatibility of the specific games you want to play. Start with the games software. The Lenovo IdeaPad 15.6-Inch Laptop, model number 81UT00EAUS, ships with the Windows 10 S-Mode Operating System. Windows 10 S-Mode provides added security by only allowing APPs available ( and therefore certified by Microsoft) at the Microsoft Store. If you don't need the added security or you need to install APPs not available at the Microsoft Store, you can switch to standard Windows 10 Home 64-bit Operating System, at no additional cost. We recommend you check with the game's software publisher's web site for their compatibility with Windows 10 S-Mode 64-bit operating system and the minimum/recommended hardware requirements (Is a Graphics card required, the processor speed and the minimum required system RAM and the minimum available hard drive space) to run their program, then compare those requirements to this system's configuration.

Yes. The Lenovo C640-13 has 360-degree hinges on the screen which allows the screen to fold back into tablet mode.

The Lenovo IdeaPad 3 15 Laptop, model number 81WE00KVUS, is not user upgradable. A certified technician must do all of the work, so as to not void the warranty. We recommend you consult with your certified technician about your upgrade options.