Not sure if you have a malicious toolbar or extension messing with your settings? Check out this tool from Google to investigate what's going on with Chrome.
When malicious programs are using your Chrome browser to collect data, serve you ads or cause overall sluggishness, there's a quick way to find out what's causing the issues. Google recently published the Software Removal tool for Windows that will scan for software that is causing issues with the browser. Google explains the tool,
Think of this as a "factory reset" of Chrome. It restores Chrome's original settings and removes programs that affect its behavior.
Before you get your Chrome back to tiptop running shape,
Ghacks suggests creating a system restore point since the tool is still in beta. Here's how:
Start by right-clicking on your Computer icon or option in the Start menu and choose Properties. You can also access this area by going to Control Panel and then clicking on the System icon.