https://www.videoproc.com/guide/how-to-use-videoproc-pc.htm
VideoProc is one-stop video processing software by making full use of Level-3 GPU Acceleration. As a complete video toolbox, it can edit, convert, resize and adjust large-sized/4K/DJI videos, audios and DVDs easily at fully accelerated speed. It also stands out in video downloading and screen webcam recording.
How to get
-Go to the campaign page(videoproc.com),
https://www.videoproc.com/video-process/how-to-merge-videos-together.htm
click Download VideoProc with Free License to download the zip
https://www.videoproc.com/download/free/videoproc-for-windows.zip
file and decompress. (zip file will auto-match your computer system)
-Then install VideoProc, copy & paste the license code from the txt file(in the unzipped folder) as well as enter a valid email to activate on the software.
-Done, enjoy the full features of VideoProc.(Version 3.7 only)
The giveaway licence doesn’t support free upgrade for future versions
Offer ends 24/7/2020