1) stop Adaware from reporting them:
uncheck "Search for Negligle Risks" before beginning the scan
2) remove all cookies currently on your pc:
Open Internet Explorer, click on Tools/Options and then click the button that says DeleteCookies)
3) prevent cookies from being stored on your pc in the first place :
Again in Internet Explorer, click on Tools/Options and go to the Privacy tab, and move the slider to the top so that it says "Block All Cookies"
If you block cookies, some websites will not allow you to have access. You can over-ride the blocking by clicking the edit button on the Privacy tab and entering the URLs for websites that you want to accept cookies from. Click Allow, then Apply.