Very recently I reformatted my notebook (using factory reset), however now, at what appears to be random times, my CPU usage goes to 100% and stay there. Using resource monitor or process explorer shows no main culprit. That is, there is no specific process or service using a lot of CPU. Actually when this happens all CPU is process in origin, nothing from services. After a while of this, the notebook just shuts down.
I checked some old topics with users having problems like mine and already got Speccy and MiniToolBox reports.
I would really appreciate some guidelines to what to do. Thanks in advance.
Speccy snapshot (just after turning my notebook on): http://speccy.piriform.com/results/qenjFdsBNGr6MJA3XdUidl8
Speccy snapshot (when CPU was at 100%): http://speccy.piriform.com/results/rVtHvqwaFjdLca5lRey3lVK
MiniToolBox results: http://pastebin.com/YqX87TGV
(List last 10 Event Viewer log, List Installed Programs, List Devices (Only Problems), List Users, Partitions and Memory size, List Minidump Files, List Restore Points)