Physical Memory Usage

hi guys

problem:
my physical memory usage is high when i have only browser opened, laptop 2months old.when i bought it i had no problems, now i dont wanna play any games more becuz it can get overheatten

i already have scanned with
-malwarebytes' anti malware
-norton internet security
-registry booster
-CCleaner

nothing found

questions:
which services/processes are unnecessary?
how else i could reduce my physical memory?

Processor : Intel Core i3 350M
GFX : AMD Radeon HD 6370M
RAM :3GB

here are some pictures

if i start a game example Allods online and put everything to minimum graphix etc my physical memory get by 60% is that ok too ?

Agreed with all of the above...and trying to free up more RAM won't do anything to prevent your laptop from overheating. That's all down to CPU and GPU usage (and to a lesser extent, components such as the HD).