Try this step if Proxy is enabled on Internet Explorer 9. If “Yes” then “uncheck” the box as shown below:
(Navigation: Click Tools from the Menu bar of Internet Explorer > Select Internet Options > Connections > LAN Settings > Proxy server)
Go to menu "Tools", "Internet Options..."
In the dialog select "Connections" tab
Click the "LAN Settings..." button dialog, the following dialog will appear:
If the checkbox "Use a proxy server for your LAN" is checked then uncheck that and check whether there any Google redirect.
That was not the issue, the proxy server was not enabled.
Try to download this free program called hitmanpro.It has 5 cloud based antivirus scanners.It is a 30 day trial so If It finds anything you will have to just click the trial offer to remove.Unless of coarse you want to purchase it.It is worth a try.If you are redirected after clicking this site.Keep hitting the back button until it goes to the download page.Believe it or not this does work sometimes.
you need a dedictaed spyware program such as super anti spyware or spybot. both are free and available from cnet