WARNING!!! Yet another ramsomware spreading rapidly

New ramsomware variant making the rounds.
If you see a screen similar to:

TURN OFF your windows PC As Soon as Possible.
Instead of running CHKDSK to repair any filesystem problems this process will encrypt the whole C: drive. Once the process finishes you will not be able to pay ransom and get your files back.
Notify your friends and family. This is serious.