how should I know if I have security system on my computer or not?

[vlj2002]

Use combofix from bleepingcomputer.com, then download malwarbytes(you may need to rename the installer/setup to something like winlogon.exe to be able to run or install it) from malwarebytes.com or softpedia.com, then clean the rest of the virus with superantispyware and Hitman Pro 3.5 from softpedia.com/cnet.com and just in case you do have a rootkit on your system use GMER from majorgeek.com(Use gmer to scan and anything in red delete.)

Future Protection use this wizard to recommend security protection for your system:

http://www.techsupportalert.com/secwiz

or go to safe mode and then do the above:


To get into Safe Mode with Networking:

1. Log out and reboot your machine.
2. When the machine starts the reboot sequence, press the F8 key repeatedly.
3. Select Safe Mode with Networking from the resulting menu.