The Prefetch feature in Chrome takes up resources by caching pages you may never go to. You can modify a setting and enable or disable the Prefetch feature as you see fit using this tutorial.
What is Prefetch?
Also known as “prerendering“, the Prefetch feature in Google Chrome will cache pages that are linked on the web page you are currently on. This allows the page to load a bit faster when accessing it.
How to disable Prefetch
1. Click the “Menu” button in the upper-right corner, then select “Settings“.
2. Choose the “Show advanced settings…” option.
3. Scroll down to the “Privacy” section, then un-check the “Predict network actions to improve page load performance” option to disable Prefetch. Check the box if you wish to enable it.