Currently, there is no WannaCry decryption tool or any other solution available, so users are strongly advised to follow prevention measures in order to protect themselves. Keep your system Up-to-date: First of all, if you are using supported, but older versions of Windows operating system, keep your system up to date, or simply upgrade your system to Windows 10. Using Unsupported Windows OS? If you are using unsupported versions of Windows, including Windows XP, Vista, Serve