Windows 7 has a memory leak, having trouble finding the cause

I'm pretty sure my computer has a memory leak. It starts up using an abnormal amount of RAM and it gradually gets worse.

Start-up: 2,0 GB
40 min: 3,4 GB
86 min: 3,6 GB
210 min: 5,1 GB

After enough time my screen just turns black and the computer freezes after which I need to manually restart.

During all these screenshots, all that was open was Firefox and a couple of tabs. Other running processes include Razer Synapse, Bitdefender, f.lux, nothing abnormally heavy.
Here are all processes that are running right after startup (Resource Monitor screenshots):

I can provide a list of all the processes that start up when my PC boots, but there really aren't that many.

I'm on Windows 7 Home Premium SP1.
I've scanned for viruses with Bitdefender and Malwarebytes.

The only possible cause I can think of is a driver or program I installed a while ago to try and access a phone with a broken screen by displaying the screen on my pc monitor.

I'm not sure if it's relevant and I stopped at a certain point through the process so I'm not sure what I did and didn't install but I figured I might as well mention it.

The problem is that I don't know where I can find a clear list of all drivers I have installed and how to uninstall them.
I did take the time to remove all unused programs from my PC.

Thanks in advance!

Answer

The problem was Bitdefender, it didn't occur in safe-mode so I looked around in my list of drivers and coincidentally saw a lot of drivers for Bitdefender. After googling the name of the program and the term memory leak I was pretty convinced this was my problem so I've removed it and replaced it with Avira.