You might try un-installing Chrome, deleting the cookies, and then re-install Chrome. Although you will probably lose all of your bookmarks. I think there is a way to save the bookmarks to Windows Explorer or Firefox and then bring them back once Chrome is re-installed, but I am not sure how to do that (I did know several years ago).
If that doesn't work, you may have to follow the steps in the link I gave you above, but I am not too keen on editing the registry. Maybe you can do the other steps and skip the regedit one and hope it goes away.