Computers running Windows 7 and above should be safe if they receive automatic updates via Windows Update.
A Microsoft spokesperson told BleepingComputer that "Microsoft released security updates on October 10th and customers who have Windows Update enabled and applied the security updates, are protected automatically. We updated to protect customers as soon as possible, but as a responsible industry partner, we withheld disclosure until other vendors could develop and release updates.”At the moment, OpenBSD, Ubuntu and Debian are also safe. Google on the other hand said a fix is still weeks away. And while Apple has fixed the issue in beta versions of iOS and macOS, the final versions are also still a couple of weeks away.