Uninstall chrome, deleting all files and settings. Install / run Malwarebytes (free trial) and quarantine everything it finds. Ununstall any remaining software discovered by Malwarebytes using the control panel or any uninstall that came with it. In the control pannel’s internet options, empty the cache then click the advanced tab and reset Internet Explorer to it’s defaults. Delete all your temporary files and any remaining chrome folders. Install Microsoft Security Essentials (free) or AVG free. Turn on the Windows firewall and remove unwanted exceptions. Download and install Chrome again. Swear at the computer. Take a walk to relieve your stress.
Wouldn’t be happening on the computer at work, too, though. I cannot specify why I know this to be true.
Maybe there is something nasty on your USB flash drive? Or by logging into google you are taking something everywhere you go? Or are you logging into Facebook? I’ve seen Facebook run Windows processes. Check your Windows task list for processes or services running - cancel one by one until the problem goes away. Chrome can run pages in the background - explore the Chrome settings more. Maybe your employer is watching everything you do with a plug-in they don’t understand? Is your spouse tracking you? Do you have multiple personalities, maybe one called Arnold who does not trust you?