How to Remove Better Business Bureau(BBB) Email Virus? Manual Removal Help

Found a message with Better Business Bureau masthead and says “there’s been a complaint filed against you in our office. ‘Click here to get more details’”? Computer is infected with virus and acting sluggish after clicking an Email attachment sent by Better Business Bureau? For more details on  fake Better Business Bureau  email virus and removal tutorials, please read this post:
How to Remove Better Business Bureau(BBB) Email Virus? Manual Removal Help