i need solutions on how to decrease my ram and cpu usage of my pc. i have 4gb ram and intel i3 3rd generation processor and a graphics card of 2gb. i am using windows 7 nd i have got a ram usage of over 70% even when my computer is idling cpu usage is average at 30-35% sometimes spiking as high as 90-99%. it wasnt so earlier but recently it is getting worse by the moment. i have only 80 processes working in background. when i use google chrome 'only' and nothing else the ram is getting upto 80-88% and cpu to 73% with only one tab open. if i try accessing any other application simultaneously the system crashes.