1) Go to your desktop ( Windows key + M )
2) Now right click LAN icon in the desktop in the right bottom corner.Click network and sharing centre.
3) Now at the left bottom click internet options.
4) Now a pop-up window opens click Privacy tab in that window.
5) If you want to disable cookies drag the bar upwards. If you want to enable cookies drag it towards down. ( It will in medium by default )