Free YouTube Download is by far the most por YouTube video download app. The program was released in 2006 and has been updated regularly since then. Use the program to download and convert videos from YouTube to watch offline at any time.
Download a lot of videos!
Save entire playlists and YouTube channels, videos from personal playlists (History, Liked videos, Favorites, Watch later), videos from different categories (Movies, Music, YouTube chats).

Download videos incredibly fast!
Free YouTube Download is a program with lightning fast video download speed in several streams. With it, you can download several videos in original quality in seconds.

Features:
• download videos from YouTube in any format (MP4, MKV (up to 8K UHD), WEBM, and MP3)
• convert to MP4, AVI, and MP3
• configure output name parameters
• download links from any text files
• automatic import of files into iTunes and their conversion for playing on iPhone / iPad / iPod
• downloading subtitles

System Requirement:

OS: Windows 10, Windows 8 / 8.1, Windows 7, Vista, XP

How to install:

-just run setup installer. It will firstly launch setup
-turn off the software
-run the patch to activate it