For Google Chrome Browser

1. Press Ctrl and H key
2. Click "Clear Browsing Data"
3. Click on “Advanced”
4. Select Time range as "All Time"
5. Select “Browsing history”, “Download history”, “Cookies and other site data”, “Cached images and files”, “Autofill form data”
6. Click “CLEAR DATA”

For Internet Explorer

1. Click on Tools → Internet options
2. In the General Tab under Browsing history click “Delete”
3. Select all and click on “Delete” (ref the figure)

For Mozilla Firefox

1. Click on Tools → Options
2. In the Privacy & Security tab under “History” option click “Clear your recent history”
3. In the Time range to clear : select “Everything”
4. Select all the options and click on “Clear Now”