What should I do to keep ransomware from getting caught?

pu1. There are ways to prevent ransomware (WannaCry. You can refer to the contents of the blog below.
http://m.post.naver.com/viewer/postView.nhn?volume...

2017-12-27

OK

pu2. I need to update the latest windows. If you want to update manually, you can look at the link below to update for ransomware on ms site.
http://www.catalog.update.microsoft.com/Search.asp...

2017-12-27

OK

pu3. I need to release the shared folder because I can get on the shared folder well

2017-12-27

OK