how to use online scanner provided by Microsoft

As many of us don't no that Microsoft provides a free online scan of your system
you can use this easily by visiting the site given below

http://onecare.live.com/site/en-in/default.htm

Note:->  THIS LINK SHOULD BE OPENED IN INTERNET EXPLORER
STEPS TO DO
1. Open the link in INTERNET EXPLORER

2.  Click on "Full service scan"

3. install the software then again click  on  "Full service scan" this will open a pop-up window then select the option according to your choice