I could sure use some assistance.  My computer has been running extremely slow and now my Ourlook said I just received an e-mail but yet it is not showing up in any of the folders. 
I am running Bit Defender, AdAware, and Spybot, but have not picked up anything.  The only thing I have noticed is that a folder keep trying to get sent out, but I have BitDefender blocking it.  How can I tell if there is a virus on my system?  If I post the processes running, would that help?  Thank you.to many cookies in your internet explorer cache, spyware,  can slow down
run an update for BIT DEFENDER then you should be ABLE to run a scan which will hopefully find any virus infections, you must keep TOOLS like ad-aware , spybot s&d and of course bit defender updated regularly otherwise they will not be able to protect your computer against the new bugs which come out frequently. and they must be used often, scanning the machine at least once a week.
  other free tools that work very well are
for free antivirus, antimalware, antispyware
avg antvirus
http://free.grisoft.com/freeweb.php/doc/2/lng/us/tpl/v5

avg antispy antimalware
http://free.grisoft.com/freeweb.php/doc/20/lng/us/tpl/v5

asquared anti almost everything it removes 657.505 bugs at the moment
http://www.emsisoft.com/en/support/malware/default.aspx?showmalware=dialer

in internet explore at the top see tools, PROPERTIES, general , then delete cookies and internet history etc, security set to medium, I have updated all the software and deleted cookies, etc.
When I ran Spybot, I checked for start-up processes and reviewed each in detail.  I found one that appears to be suspicious: crypt32chain.dll
When I googled this, some people say it is a trojan.  I unchecked it from the start-up processes and the computer seems to be running better.  Any suggestions or comments on this?Dload and INSTALL then update AVG Anti- Spyware...

Dis-connect from the web.

Run the AVG program in safemode and let it FIX all it finds.

Re-boot and do a search for that file to see if it is gone.

Post back with a list of all your security apps...