How I can stop my email from sending SPAM to others?

I received a text last week saying that my yahoo password was changed, and I went and changed it again, and now a couple of people told me today that they received a spam email from me twice this past week, but I never did? How can I make sure that it doesn't happen again? Also what is a good "free" anti-virus that I can use for my computer. I downloaded this week AVG, is this good enough?



Thanks!How I can stop my email from sending SPAM to others?
AVG is excellent. Update it and run a scan regularly.



You might not be infected. The spam could be coming from someone who has you in their address book.



Computer Repairman
Free AVG - crapware, read:



http://answers.yahoo.com/question/index;鈥?/a>



You can only run one antivirus program delete free AVG %26amp; download new antivirus program.



Then run:



Free Malwarebytes:

http://download.cnet.com/Malwarebytes-An鈥?/a>

Free Superantispyware:

http://www.snapfiles.com/get/SuperAntiSp鈥?/a>



any problems now, email me for more help.How I can stop my email from sending SPAM to others?
AVG Free is the excellent anti-virus software but it is not enough for that you need a better for your computer like Internet Security, Anti Mal-ware, and Firewall..





I think the Quick Heal is the best for it.



just try it.
Make sure to check over ever detail of your e-mail, and change it.

Security Questions -%26gt; Alternate E-Mails -%26gt; The works.



And yes AVG is well.How I can stop my email from sending SPAM to others?
spam?

Dear HSBC Bank UK Cardholder,

You have one new message. you are requested to

Log on to your account to view message
Make sure the first contact in your list is a fake.





aaaaa0000011111@notexistingemailadress鈥?br>




most of those viruses send it to the first contat, and if it gets an error it stops...