Support for Windows XP, Server 2003, but has already released updates to Windows 7, XP and Windows Server 2003, the software giant US News-News.
A blog post from Microsoft said, "This error was already there and it does not have to be done on the client side to be victimized. In the year 2017, Wanakai malware was spread around the world, malware can be transmitted from a computer to another using this old version of Windows. "
Microsoft has no information that has received the chance for this error.
Microsoft has released a security patch that does not risk the error, but a hacker can not create malware for Windows operating systems and manipulate the data.
"For all these reasons, we are seriously convinced that if the faulty system is upgraded, whether or not network-level authentication should be initiated, they should be updated as soon as possible."
Computers running Windows 8 and Windows 10 were advised not to suffer this error.