That will depend on the requirements and compatibility of the programs you use. The Lenovo IdeaPad 3 15 Laptop, model number 81WE00KVUS, ships with 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. Here is a link to instructions for switching from Windows 10 S-Mode to Windows 10 Home: https://support.microsoft.com/en-us/help/4456067/windows-10-switch-out-of-s-mode. We recommend you check with the software publisher's web sites 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.

You can use a capacitive touch stylus as a finger replacement on the touchscreen of the Lenovo C340-11 Chromebook, like this one: https://www.bestbuy.com/site/insignia-stylus-silver/3695185.p?skuId=3695185

The WiFi receiver is already built in.

Here is a link to help for changing your password on a Windows 10 Laptop: https://support.microsoft.com/en-us/help/4028457