That will depend on the requirements and compatibility of the specific APP you will need to use. This Lenovo IdeaPad 3 15 Laptop, model number 82H801DQUS, ships with Windows 11 S-Mode 64-bit Operating System installed. 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 specific APPs software publisher's web sites, of the APPs you will need to use, for their compatibility with Windows 11 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. If you choose to switch out of S-Mode for Windows 11 Home: Here is a link to instructions for switching from Windows 11 S-Mode to Windows 11 Home: https://support.microsoft.com/en-us/help/4456067/windows-10-switch-out-of-s-mode. This IdeaPad 3 15 ships with a HD (720p) webcam with Privacy Shutter and Dual Array Microphones built in. There is a 30-day trial of Microsoft Office 365 included as part of the Windows 11 operating system. In order to keep the program active after the trial period, you will need to purchase a product key. You will not need to download any additional software.