There are several free desktop recorders available that can record both video and sound. Here are a few popular options:
OBS Studio: OBS Studio (Open Broadcaster Software) is a powerful and versatile open-source software for video recording and live streaming. It allows you to capture your desktop, applications, or specific windows, and includes audio recording capabilities. OBS Studio offers a wide range of customization options and supports multiple platforms (Windows, macOS, and Linux).
ShareX: ShareX is a feature-rich screen capture and recording tool that is free and open-source. It supports various capture methods, including full-screen, region, and specific window capture. ShareX also offers audio recording options, allowing you to record system sound or microphone input. It is available for Windows.
Windows 10 Game Bar: If you're using Windows 10, the built-in Game Bar has basic recording capabilities that can capture your screen along with system audio. To access it, press Win + G, and you'll find the recording options within the Game Bar interface.
QuickTime Player (Mac): If you're using a Mac, QuickTime Player, which comes pre-installed on macOS, can be used to record both video and audio. It offers a simple interface and basic recording features.
CamStudio: CamStudio is a free and open-source screen recording tool available for Windows. It can record both screen activity and audio, providing options for capturing the entire screen or specific regions.
Remember to review the specific features and system requirements of each tool to ensure they meet your recording needs. Additionally, be mindful of any limitations or licensing terms associated with the software you choose to use.