[Solved] How to deploy Windows server 2012 R2 patch to fix WannaCry?

For Windows Server 2012 R2:

Check the hotfix exist or not
1. cmd
2. wmic qfe get hotfixid | find "KB4012216"
If the hotfixed was installed, you will see the result, if not, then you will see empty line.


By the way, KB4012213 is included in KB4012216, KB4012216 is monthly hotfix.


Ref:
Windows Server 2012 R2 / Windows 8 hotfix download link:
https://www.catalog.update.microsoft.com/Search.aspx?q=KB4012216

Windows version and hotfix mapping:
https://www.ithome.com.tw/news/114154

How to check hotfix version with Windows command line:
https://ithelp.ithome.com.tw/articles/10199364