Hi Paul! You can try new Kaspersky decrypt tool (http://www.kaspersky.com/about/news/virus/2016/CryptXXX-has-been-decrypted-Kaspersky-Lab-releases-a-new-tool-to-free-encrypted-files) but in order to decrypt files you must have at copy of at least one identical(but not infected) to encrypted file...
Click the Start button
Scroll down window and click 'Change Product Key'
Click on the Start Button and type: CMD (into the 'Search programs and files' field in the Start Menu)
The Start Menu will show 'CMD.exe',
Right-click the CMD.exe file and...