IT nerd here... download Malwarebytes. At my company we get this issue almost on a daily basis. This by far is the best fix.

http://download.bleepingcomputer.com/malwarebytes/mbam-setup.exe

Instructions -
Once downloaded, close all programs and Windows on your computer, including this one.


Double-click on the icon on your desktop named Download_mbam-setup.exe. This will start the installation of MBAM onto your computer.


When the installation begins, keep following the prompts in order to continue with the installation process. Do not make any changes to default settings and when the program has finished installing, make sure you leave both the Update Malwarebytes' Anti-Malware and Launch Malwarebytes' Anti-Malware checked. Then click on the Finish button.


MBAM will now automatically start and you will see a message stating that you should update the program before performing a scan. As MBAM will automatically update itself after the install, you can press the OK button to close that box and you will now be at the main program.

On the Scanner tab, make sure the the Perform quick scan option is selected and then click on the Scan button to start scanning your computer for AntiSpyware Pro XP related files.


MBAM will now start scanning your computer for malware. This process can take quite a while, so we suggest you go and do something else and periodically check on the status of the scan.

When the scan is finished a message box will appear. Click OK.

You will now be back at the main Scanner screen. At this point you should click on the Show Results button

You should now click on the Remove Selected button to remove all the listed malware. MBAM will now delete all of the files and registry keys and add them to the programs quarantine.


When MBAM has finished removing the malware, it will open the scan log and display it in Notepad. Review the log as desired, and then close the Notepad window.


You can now exit the MBAM program.