Unwanted actions, converting audio/video files, bad programming error(s), malwares or working with compressed archives sometimes makes your CPU usage 100%.Because these processes completely consume the cpu, your system becomes sluggish to respond and using the computer for other tasks becomes impossible while these processes are running.This mean, your system will be down immediately.There is one way that you must press the RESTART button to reboot your system.Important datas still not saving will be lost without any confirmation.[FireLion] FrostShield keeps your PC smooth even the CPU usage is 100% loading.