Most computers that are connected to the Internet do what is called DNS caching. This means that domain names and web addresses of the websites that you visit are stored so that when you visit a page more than once, it can load faster because it has been cached. If you want to erase the information in this cache, it is called flushing the DNS.
To flush your DNS cache, you will need to open the Command Prompt.
Click Start>Run, type "cmd" and click enter to open the Command Prompt.
The Command Prompt can be opened by typing "cmd" and then clicking enter in the search box of the Windows Start menu.
You can open the Command Prompt by taking your mouse into the top right hand corner of the screen and selecting the search option. Type "cmd" into the search box and press enter.
Once the Command Prompt is open, you can flush your DNS cache by typing the following command and pressing the enter key:
You should then receive a message saying "Successfully flushed the DNS resolver cache".