Internet Explorer:

1. Go to Tools > Internet Option
2. Under Browsing History, click on "Delete"
3. Check on Temporary Internet files, Cookies, History* and InPrivate Filtering Data
4. History*: this is optional whether you wish to remove the websites that you have visited earlier.
5. Click "Delete"

Mozilla Firefox:

1. Go to Tools > Options
2. Go to Privacy
3. Click on ‘clear your recent history’ under History.
4. Check on Browsing & downloaded history, Cookies and Cache.
5. Click "Clear Now"

Google Chrome:

1. Go to Customise and control Google Chrome.
2. Go to Settings.
3. Click ‘Clear Browsing data’ under Privacy.
4. Check on Browsing History, Cookies and other site and plug-in data, Cached images and files.
5. In "Obliterate the following items from", select "the beginning of time".
6. Click "Clear Browsing Data"

Safari:

1. Go to Safari > Preferences
2. Click "Privacy".
3. Click "Remove All Website Data".
4. Click "Remove Now".