Once installed, always search and download the latest Spybot - Search and Destroy Updates.
It will automatically check the crucial updates so if you are unsure what to select, simply continue.

Once the software is updated, click the Search and Destroy button and begin your scan.
Once the scan is completed, click "check all" and press "Fix selected problems" to begin fixing.

Once your scan is completed and you removed all traces of problems, you should Immunize your PC.
This will protect yourself from future browser threats before they can infect your system.