A Microsoft spokesperson said the company reached out to Kaspersky after its initial complaints last year, but that no meeting between the two had happened so far. Microsoft's statement:
"Microsoft's 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. 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."
Kaspersky officials maintain that it is impossible to completely uninstall Windows Defender. They also say the upgrade to Windows 10 may have invalidated security programs already installed on users devices by uninstalling drivers. Kaspersky also says Microsoft is not providing third-party vendors with sufficient time to certify their products with new feature updates to Windows 10.