Your screen shots only showed a small fraction of the process list. So it is hard to make any intelligent comment, other than to say you have a huge amount of stuff running at the same time. Multiple chrome windows, multiple Steam processes, multiple anti-virus tools, Torrents, WinRAR, plus lots of other stuff. There is also some process (not visible in your screen shots) that used up to 3GB of RAM, sitting under a svchost.exe process.