If you need your Google password reset, either because you forgot it or for some reason it was changed, you can simply reset your windows password. Your Google password is synced to your windows password, but not the other way around. Also, if your Google password is manually changed, the sync stops as well.
You can change your windows password by logging into your windows computer, then pressing ctrl + alt + delete, then selecting the change password option. It will ask you to put in your old password, then a new password twice. As soon as you have set the new password, it will sync up to Google, and now your Google password will match what you just set for your windows password.