OBS-Studio

OBS Studio (formerly known as OBS Multiplatform) is a complete rewrite of the original OBS from the ground up, with the main goals being multiplatform support, a more thorough feature set, and a much more powerful API.

Developers: Open Broadcaster Software
Official website: https://obsproject.com/
Video: https://www.youtube.com/watch?v=WYdczAfvxMo
Version: 0.14.2

comment:
What is actually "OBS"? Broadcaster open source software for video recordings live.
'OBS' allows developers to create their own unique video-audio recordings,
giving them and other additives streaming productions.
Some of the popular plugins that are included in the program are:
Simple scene switcher
video source
Browser source
and many others.
Supported functions include:
Encoding using H264 (x264) and AAC.
Support for Intel Quick Sync Video (QSV) and NVENC.
Unlimited number of scenes and sources.
Live RTMP streaming to Twitch, YouTube, DailyMotion, Hitbox and more.
File output to MP4 or FLV.
GPU-based game capture for high performance game streaming.
DirectShow capture device support (webcams, capture cards, etc).
Windows 8 high speed monitor capture support.
Bilinear or lanczos3 resampling.

Requirements:
Windows 7/8/10 /
RAM: 1 Gb
Disk Space: 800 Mb (for the needs of recordings is good to have 2 Gb)

INSTALLATION:
1. Start and install from 'OBS-Studio-Installer'.
(The rest can see in the tutorial)