NitroWarp records the screen on this computer and saves a video file. It can record the whole monitor, a box you draw, or the game in front of you.
Do these the first time:
Videos\NitroWarp. A second drive keeps large files off the system disk. See Files and the tray.The small line under Record and Replay chooses Full screen or Selection. Help on the left opens this book.
Your settings stay in %LOCALAPPDATA%\NitroWarp. The recordings stay in the folder you chose. Closing the window hides NitroWarp in the tray. Exit on the tray icon quits.