Hi,
Just reposting this information here, in case someone needs it:
So now there is a possibility to unlock files encrypted by WannaCry ransomware using a free decryption program
https://blog.malwarebytes.com/cybercrime/2017/05/wannadecrypt-your-files/
http://thehackernews.com/2017/05/wannacry-ransomware-decryption-tool.html
https://malwareless.com/free-wannacry-ransomware-decryption-tool-unlock-files-without-paying-ransom/
The decryptor is only going to work if you haven’t killed the ransomware process (should be wnry.exe or or wcry.exe) in Task Manager.