Eugene Kaspersky, co-founder of antivirus company Kaspersky Lab, is really mad. So much so that he has filed two antitrust complaints against Microsoft

What he is so frustrated about is that when a user upgrades their computer to Windows 10, it automatically deletes Kaspersky’s antivirus program and replaces it with Windows Defender.

With an upgrade, users are faced with a message that "it doesn't work on this version of Windows." What is even more confusing is that it remains in the installed program list but most of its files have been removed.

In a statement, a Microsoft spokesman said its "primary objective is to keep customers protected and we are confident that the security features of Windows 10 comply with competition laws.

"We're always interested in feedback from other companies and we engage deeply with antimalware vendors and have taken a number of steps to address their feedback," the spokesman said. "We reached out directly to Kaspersky a number of months ago offering to meet directly at an executive level to better understand their concerns, but that meeting has not yet taken place."

Microsoft usually issues the criteria for developers to ensure their software remains compatible. Usually they are given a couple of months. But Kaspersky argues that it is really more like a couple of weeks.

Source: PCMag