Russian antivirus vendor Kaspersky Lab has asked antitrust regulators in various countries (including the European Union and Russia) to make Microsoft stop giving an unfair advantage to Windows Defender, Eugene Kasperky wrote in a blog post. From a report on Myce: Microsoft is making it hard for independent anti-virus vendors to compete with Windows Defender, Microsoft's own antivirus application built-in to Windows 8 and Windows 10, according to founder of Kaspersky Lab, Eugene Kaspersky. For example, when users upgraded to Windows 10, their own antivirus product was disabled and Windows Defender was enabled by default. Another showcase of Microsoft's way of making it harder to compete is that antivirus companies only received a week to make their antivirus software compatible with Windows 10. And even when the antivirus software was compatible, Windows Defender would be enabled nevertheless.You can read Eugene's blog post here.