Fix: Microsoft Defender Flags WinRing0x64.sys as a HackTool – False Positive? Windows Fix: Microsoft Defender Flags WinRing0x64.sys as a HackTool – False Positive? jasabacklink March 18, 2025 In the past few hours, Microsoft Defender has started flagging WinRing0x64.sys, a common driver used by various... Read More Read more about Fix: Microsoft Defender Flags WinRing0x64.sys as a HackTool – False Positive?