As usual Microsoft says it's not their fault, but this really is a huge deal. It's one thing when Microsoft decides to uninstall freeware programs, but it's quite another when it decides to uninstall a subscription program. Say you're the average person who knows only computer basics, they're not going to think to go to Kaspersky and redownload the program, they're going to think they're protected and go along happily until they get a large charge on their credit card for subscription renewal.
Microsoft has responded to Kaspersky's claims and, naturally, has denied that it's doing anything wrong.
"Microsoft's primary objective is to keep customers protected and we are confident that the security features of Windows 10 comply with competition laws," the firm said.
"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."
Maybe Kaspersky and the other major anti-virus programs should start flagging Windows 10 as a virus and uninstall it.