Solved CPU running at ~80% when computer is idling

Hello, I have had some issues with my laptop running very hot even when it's not used. I figured out that it was because of my cpu running at around 80% all the time. This of course, is causing a cpu idle temp of around 65c and a quickly depleted battery.

The computer (a Sony VAIO SVS1513C5E) have two modes (Stamina and speed) that switches between silence mode (low effect and integrated graphics) and high performance mode (hybrid graphics, high performance). CPU temp is at 65c when running in 'silence' mode (can't say that it is very silent, given the fanspeed to cool down the computer). High performance increases this to 75c (still idling!), and increases the fan volume by quite a lot.

I did scan it with windows defender, without anything coming up. I am also running process explorer at the moment, it says that system is using ~20% cpu, services.exe a tad above 20% and around 20% idle. The rest of the processes are using a total of around 2-3%, leaving 37% (?). The 20% from services.exe seems to be mostly svchost and some intel bluethoot driver (that I will be uninstalling, as I dont use bluethoot anyways).

Needless to say, I can't leave it like this. Does anyone have any tips on what to do/try next?

So.... I uninstalled the intel bluethoot driver/software and restarted as I thought it was uneccessesary to spend 5% cpu on something I don't use. Now the computer is using 1-3% cpu when idling, it turns out that intel drivers was draining a little bit more than 5%.

It might have had something to do with me uninstalling some intel wireless software earlier (there are some issues with the newest drivers for my wireless card, and the wireless software for windows 8 is more than good enough). Either way, the problem is solved, so I no longer need any help

In cases like that, it's always best to check which process is using so much resources, it's built in windows and there are some third party utilities for that too.