First, clean up the system from unnecessary and temporary files by downloading CCleaner from http://www.ccleaner.com/download/builds
Scroll down the page then select to download the Slim with no toolbar.
Install the program then clean-up the system. The default settings is OK to use and when you're ready to be familiar with it, check the settings to configure it the way you want it to clean.

NOTE: You don't have to run the Registry clean-up using CCleaner. It's not necessary.

Next, Download, Install, Update then scan the system using any of the following products:
Please read the notes before doing anything. If possible print or copy it in a notepad and close the browser or any opened Windows while you are running a cleaning or disinfection on a computer.

NOTE: If any of these programs finds infection, allow it to fix the computer. Reboot after the removal process. Re-scan the system until no more infection can be found.
Please scan in Normal mode, scan only using SAFE mode if the PC shutdown during scanning and/or removal process.

SUPERAntispyware (SAS) http://www.download.com/SUPERAntiSpyware-Free-Edition/3000-8022_4-10523889.html
You can also download it from http://superantispyware.com/downloadfile.html?productid=SUPERANTISPYWAREFREE

+++++ If SuperAntispyware will not install, please download and run the alternate version of the install package:
Get the alternate installer of SUPERAntiSpyware FREE Edition from http://downloads.superantispyware.com/downloads/SAS_FREE.EXE
Proceed by installing the alternate version of the installer.
See also: http://www.superantispyware.com/supportfaqdisplay.html?faq=71

+++++ If SuperAntispyware will not run, download RUNSAS.EXE to launch SUPERAntiSpyware:
RUNSAS.EXE - http://www.superantispyware.com/downloads/RUNSAS.EXE
See also: http://www.superantispyware.com/supportfaqdisplay.html?faq=71

+++++ If you will have problem updating SuperAntispyware, download the definitions installer from http://www.superantispyware.com/downloads/SASDEFINITIONS.EXE
See also: http://www.superantispyware.com/definitions.html

+++++ If you want to re-install SAS but encounter issue with re-installation, use first the SuperAntispyware Uninstallation Assistant by downloading it from http://www.superantispyware.com/downloads/SASUNINST.EXE then proceed to re-install SAS Free.

A2 Free (A2) http://www.download.com/A-squared-Free/3000-2239_4-10262215.html

+++++ If a-squared will not run or install, download a-squared Emergency USB Stick from http://download1.emsisoft.com/a2usb.zip
Save it in your desktop or USB stick then extract the content to the USB stick (in the root directory of your USB stick, not in any folder). Proceed by running a2Free.exe from the USB stick
More info http://www.emsisoft.com/en/software/stick/

Malwarebytes Antimalware (MBAM) http://www.download.com/Malwarebytes-Anti-Malware/3000-8022_4-10804572.html
You can also download it from http://www.gt500.org/malwarebytes/mbam.jsp

+++++ If MBAM will not install, please rename the installer mbam-setup.exe. Example: newtool.exe
Proceed installing the renamed installer of MBAM.

+++++ If MBAM will not run, go to the program directory of MBAM (e.g. C:\Program FIles\Malwarebytes Antimalware\) then rename mbam.exe to newtool.exe, double click newtool.exe to proceed in running a quick scan.

+++++ If you can't update MBAM, manually download the database installer from http://malwarebytes.gt500.org/mbam-rules.exe
See also: http://malwarebytes.gt500.org/database.jsp

+++++ If you need to re-install MBAM but encounter issue in re-installing, try using the MBAM Cleanup Utility by downloading it from http://www.malwarebytes.org/mbam-clean.exe

Please post back for additional help.