How do you get scareware out of your system?

You may find some good advice in these sites.

http://www.google.com/search?source=ig&hl=en&rlz=1G1GGLQ_ENUS374&q=removing+scareware&aq=f&aqi=g1&aql=&oq=&gs_rfai=CI_3srQYkTOzoI5aizATZ2f3ZCgAAAKoEBU_QMUgB