Computer Security & Viruses/Hijacked email contacts

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Question
About a yr ago, several of my email contacts rcvd an email from me with only a link to a website. The same email was sent many people on my brother's contact list, but not mine. I'm guessing I got it from him. About the same time, my system has slowed down (Windows 7). I can't seem to find the virus or whatever it is. Emails are still being sent in my name. I've used various virus programs, system scans, firewalls, malware programs, etc. I'm at a loss. What can I do to get rid of this problem? I'm no beginner, but certainly not an expert, so please keep it in layman's terms. Thanks for your time.

Answer
Your question is confusing. Did it slow down a year ago? Recently?

You've checked various scans and found nothing, but have you deleted your temporary files lately, or defragmented your volume?

About emails being sent in your name, this article might help you understand that problem:

http://ask-leo.com/someones_sending_email_that_looks_like_its_coming_from_my_dom

See: http://www.wikihow.com/Speed-Up-a-Slow-Windows-Computer-for-Free
about other reasons why your computer is slower.

Please provide more info about the security applications you use on a regular basis, if the above doesn't help you resolve the issues.

Computer Security & Viruses

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James Filmer

Expertise

Viruses, Spam, hacking, Rootkits, Trojans, Keyloggers, all other forms of Malware, Internet access problems, slow systems, application and system instability, network abuse, Firewalls, layered security configurations, system maintenance support and general troubleshooting.

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System, network and website administrator

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