Step 1First of all you will need proxy servers (proxys) for your Internet Browser. You can get some 
free proxy servers for test here or you can 
buy VIP access to have fastest and most stable public proxy servers here.
Step 2Good! You have proxy server(s), lets say that one is: 210.176.165.168:3128. Now you will need to start Internet Explorer. Click on 
Tools (circle #1) menu and select 
Internet Options... (circle #2) in the list as shown below.
Step 3Move to the 
Connections (circle #1) tab. At the bottom of the window in the 
Local Area Network (LAN) settings section click on the 
LAN Settings... (circle #2) button as shown bellow.
Step 4First of all check the box labeled 
Use a proxy server (circle #1) and after click on 
Advanced (circle #2) button as shown below. 
Step 5Type your proxy servers IP address under 
Proxy address to use (circle #1) label and proxy port under 
Port (circle #2) field as shown below. Check the box labeled 
Use the same proxy server for all protocols (circle #3) as shown below. Click 
OK (circle #4) button

Now you have successfully setup proxy for your Internet Explorer.