In my case this was caused by DNS redirection. Try this to solve the problem:
* Go to Network connections folder by following Start -> Connect to -> Show all connections.
* Right click “Local Area Connection” if you are connecting to the internet by a cable or “Wireless Network Connection” if wireless. Click “Properties” to bring up the “Connection Properties” panel.
* Highlight “Internet Protocol (TCP/IP)” and click the “Properties” button.
* In my case, I had “Use the following DNS server addresses:” highlighted and “77.74.48.113” as the Preferred DNS server. If this is your case as well, delete “77.74.48.113” and select the radio button next to the “Obtain DNS server address automatically”
* Click OK button.
* Try Google search and verify that searchclick8.com redirection is gone.