Prevention of WannaCry Ransomware Threat:
It has been reported that a new ransomware named as “Wannacry” is spreading widely. Wannacry encrypts the files on infected Windows systems. This ransomware spreads by exploiting vulnerable Windows Systems. The Indian Computer Emergency Response Team has issued advisory regarding prevention of this threat.
If your system is affected you will get a message as ” OOOPs, your important files are encrypted” you will not be able to access your files in the system. To encrypt it will ask you to pay $300 to $600 in Bitcoin . Bitcoin is a digital currency accepted worldwide
In view of high damage potential of the ransomware a webcast has been arranged to create awareness among users/organisations.
Please apply this patch immediately to your machines if not updated
https://technet.microsoft.com/en-us/library/security/ms17-010.aspx
For more detail check the webcast by Government of India http://webcast.gov.in/cert-in/
If your system is infected you may not be able to access any files and software it will give a message like below:

WannaCry Ransomware Threat
System not supported:
Windows XP, Vista, Server 2003, Server 2008 etc