Angelo may have installed something that included them without him realizing it. Many freeware programs like WinAmp have partnerships that install bloatware and they aren’t easy to remove. Leo recommends the REVO Uninstaller. He shouldn't try to remove any scripts either, he could end up breaking something. He should also uninstall extensions. Angelo can also run the Microsoft Malicious Software Removal Tool (Start - Run - type MRT - Enter or Windows Key + R then type MRT and Enter).