clean computer

I'm trying to remove the cooler and thermal conductor from my laptop. I already removed all screws from CPU and coolers but, somehow, the thermal conductor is still stuck together with the CPU. I'll leave an illustration of the scene. Any help will be greatly appreciated!

So recently I got my hands on a used 1070 what was pretty dirty. I cleaned up the fans and all of the other parts with the isopropyl wipes besides the PCB itself. I mostly used online to get help & from what I've seen there's nothing mentioning using isopropyl wipes to clean the PCB, only items...

It's been a while since I've restarted my PC (just put it to sleep at night), so decided to do so when my laptop was giving me network troubles (different story, still not resolved :-/). Once it came back up, my second monitor, a Monoprice, showed as a generic Non-PnP monitor, and won't go above...