If you're using a Windows computer, you can stop Gstatic by going to your Control Panel and opening the System Configuration Utility. From here, click on the Startup tab and uncheck the box next to gstatic Update Service. This will prevent Gstatic from starting up automatically when your computer starts. If you're using a Mac, you can stop Gstatic by opening your Terminal and typing in sudo killall -HUP mDNSResponder.