Acer Aspire E15 (E5-575G-77ZE) freezing problem

Laptop just froze 2 times and I could only turn it off by pressing the Power button....then i had no problem for the day...

Today same thing happened...after I got and error with Adobe Flash Media Live Encoder 3.2.

My laptop has the latest BIOS version 1.27 installed.

I had some driver errors problems with it after i updated BIOS...i dont know if they are related...but just to be sure I reinstalled Windows 10 x64 PRO on it...clean install.

just now in windows logs i am getting the message:

"The speed of processor 2 in group 0 is being limited by system firmware. The processor has been in this reduced performance state for 71 seconds since the last report."