Run a scan with AdwCleaner. Same as above, scan with it, delete what it finds, post the log file here. Download from here: AdwCleaner Download
Thirdly, run a scan with HiJackThis. Run it as Admin, pick the "scan and generate log" option, and then post the logfile here. Do NOT remove ANYTHING unless told to do so, as removing the wrong entry can damage your system. Download it from here: HiJackThis | SourceForge.net