No. The Lenovo IdeaPad 3 15 Laptop, model number 81WE011UUS, ships with the 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. Here is a link to more information about 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

No. There is no built in CD/DVD drive within the Lenovo IdeaPad 3 15 Laptop, model number 81WE00NKUS, but you can use an external, USB-based Windows 10 compatible CD/DVD drive with this laptop.

While the Lenovo Tab M10 Plus tablet is not compatible with any active/digital pen, you can draw on the touchscreen with either a finger or a capacitive touch stylus as a finger replacement, like this one: https://www.bestbuy.com/site/insignia-stylus-silver/3695185.p?skuId=3695185

That will depend on the requirements and compatibility of the VR hardware and software you will be using. We recommend you check with the VR hardware and software manufacturer's websites for their compatibility with Windows 10 Home 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.