My 16 gb of memory always seems to be above 80% after just a 1-2 hours of being on. I recently changed my pc to windows 10 from windows 7. I have tried to end task any program that's using more then 20% (ie chrome) but then some other programs will start using more of it (like my antivirus).
This is my computer idle after turning it on after 7-9 hours being off.
This is my computer idle after turning it on after 7-9 hours being off.