Will need for you to post a couple of scans.
Please download HJTsetup.exe from this link http://www.thespykiller.co.uk/files/HJTsetup.exe to your desktop.
Doubleclick on the HJTsetup.exe icon on your desktop.
By default it will install to C:\Program Files\Hijack This.
Continue to click "next" in the setup dialogue boxes until you get to the "Select Addition Tasks" dialogue.
Put a check by "Create a desktop icon" then click "Next" again.
Continue to follow the rest of the prompts from there.
At the final dialogue box click "Finish" and it will launch Hijack This.
Before doing a system scan rename hijackthis.exe to show.exe as some spyware key off of the name. Just do a search for hijackthis.exe> then left click on the file>click rename> name it show.exe> exit and run the scan as described.
Click on the "Do a system scan and save a logfile" button. It will scan and the log should open in notepad.
Click on "Edit > Select All" then click on "Edit > Copy" to copy the entire contents of the log and post it in this thread.
Do not fix anything yet unless you know what you are doing. This is a powerful tool that can crash the computer if used improperly.
Please download ComboFix to the Desktop from this link:
http://download.bleepingcomputer.com/sUBs/combofix.exe
Double-click combofix.exe
Follow the prompts.
(Don't click on the window while the program is running, it may cause your system to hang.)
Please post the combofix.txt log.
