There was a time that my mother and my sister share a common PC (Windows 7), and by that they also share uses the same browser, Google Chrome. They both have different Google Chrome accounts on that browser. Each account has it's own list of Google Apps. They have unique apps on each account, though they also have some common app (e.g. Hangouts, some offline games, etc.)
When my sister bought her own laptop, my mother remove her account on Google Chrome. But it seems my sister's app is not removed on the process. We tried using registry cleaning software (CCleaner, etc.) but it is not removed. She reinstalled the browser, but the same apps still persists. How can we remove the duplicate apps.