Have you checked for malware? List of malware removers: * SuperAntispyware - http://www.superantispyware.com/ * AdwCleaner - http://www.bleepingcomputer.com/download/adwcleaner/ * Malwarebytes' Anti-Malware - https://www.malwarebytes.org/ * Spybot Search & Destroy - http://www.safer-networking.org/en/index.html * Kasperky Free Security Scan - http://www.kaspersky.com/security-scan * Windows Defender - http://windows.microsoft.com/en-us/windows/using-defender If these don't find it or can't clear it, post in one of these forums for specialized malware removal help: * http://www.spywarewarrior.com/index.php * http://www.spywareinfoforum.com/ * http://bleepingcomputer.com/ * http://www.thespykiller.co.uk/index.php?board=3.0 * http://forums.whatthetech.com/index.php?showforum=27ßß