how to protect your self from ransomware "wanna cry"

what is that ?

 -it is a strong virus that can make your computer lose all data on it then ask you to pay for replace it 

Ok, what should i do ? 

-update your windows 

-update your antivirus

-copy all your data on removable disk 

                                                OR

go to control panel 

1-choose program 
2- click on windows features on or off 
3-unmark SMB 1.0/CIFS File sharing support 
4-then press ok and restart your computer 


it's appeared like this >>

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