My Windows 8 shutdown when i will install something, example Windows updates, it cames to about 47 % and then shutdown, the same if i'm trying to install a game in STEAM. Hope u can help me with this. I have updated my driver, DirectX, Framework, and some updates to Windows 8. btw sorry my English
If u r system (processor,gpu,smps)fan has any damage the system overheat quickly so protect from more damage the system shutdown without any error message like bluescreen message.
so check all fans are working correctly and clean the dust from cpu.