My computer does not work properly in video games

May 13, 2018
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Hello. I would like to ask for help for a problem on my computer. For a few days the computer is frozen after a while using it and then I have to restart it. Today I made a clean installation of Windows and the computer is no longer freezing but when I am going to play some video games, we have a lot of fps down. I also cleaned the computer because I had some dust. Before the same games worked well and I did not have this problem.
My PC:
- GTX 1060 6 GB
- i7 4770K
- 16 GB RAM

For 4 years I've had the computer and I've never changed the processor's thermal paste. Could this be the problem?