Unfortunately, at this time the only way to recover your files is from a backup, by trying Shadow Volume Copies, or by paying the ransom.

While shadow volume copies won't guarantee victims can get back all their files, it at least allows them to recover some documents. Second flaw is a little harder to exploit ...

Windows Vista only: Shadow Copies, an automated file version saver built into all copies of Windows Vista (and enabled by default), isn't a complete backup solution, but it could be a life-saver ...

How to recover files from a System Restore Point Since Windows doesn’t offer a direct way to open these show copies or restore points, we will use third-party software— Shadow Explorer.