Open Hardware Monitor - Monitors temperature sensors, fan speeds, voltages, load and clock speeds, with optional graph.
OBS Studio - Free and open source software for video recording and live streaming for Mac, Windows and Linux.
Guru3D - Guru of 3D: PC Hardware Reviews and tests
CamStudio - CamStudio is a screen capturing tool that records video from computer screen and save it to system’s storage with AVI extension, which is propped up by most frequent video players and editors.
Geforce Experience - GeForce Experience is a new application from NVIDIA that optimizes your PC in two key ways.
Free Screen Video Recorder - Free Screen Video Recorder: record video with sound, make screenshots in BMP, JPEG or PNG format.