Autoruns - See what programs are configured to startup automatically when your system boots and you login.
Open Hardware Monitor - Monitors temperature sensors, fan speeds, voltages, load and clock speeds, with optional graph.
CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.
Guru3D - Guru of 3D: PC Hardware Reviews and tests
Glary Utilities - The No. 1 Free, Powerful and All-in-one utility for cleaning your PC
Geforce Experience - GeForce Experience is a new application from NVIDIA that optimizes your PC in two key ways.