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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 “Prefetch resources to load pages more quickly” option to disable Prefetch. Check the box if you wish to enable it.

There are 2 ways to delete the chat history: Partial and Complete. 1. Partial Go to WhatsApp's setting and turn off the message history option which is by default selected as media card. Now restart the phone by pulling out the battery or by pressing Left Alt + Right Shift + Del at the same time. It will not delete any chat also if you scroll upward through the chats you'll find that the partial history is gone. Chats can be manually deleted one at a time, however the partial history will be still present the next time you try to initiate a chat with those contacts. 2. Complete Go to WhatsApp's setting and turn off the message history option which is by default selected as media card. Now exit WhatsApp and go to Media, in options click on Explore . Select Media Card and then click on databases. Inside the databases folder go to WhatsApp folder and delete all the files present in the folder (those files are chat databases). While deleting, if any files ...