Patch installation of windows 2012 R2 to prevent WannaCrypt virus

I believe that for windows 2012R2 installation to prevent WannaCrypt virus Microsoft patch, many people should have the following error, but also wonder about the same version of the server, some can be installed but report error:

For this kind of error, we first need to make sure that the patch and system version are correct. If these are met, please check the prerequisites for the patch (in the order: KB3021910--- > KB2919355):

KB4012213 cannot be installed until it is satisfied.

If there are still some server installation KB2919355 errors are as follows:

Please execute the clearcompressionflag of the KB2919355 download interface (I also attach it at the end of the article) and then install

Finally, attach links to these patches:

KB3021910: http://www.catalog.update.microsoft.com/Search.aspx?q=3021910

KB2919355: http://www.catalog.update.microsoft.com/Search.aspx?q=2919355

KB4012213: http://www.catalog.update.microsoft.com/Search.aspx?q=4012213

Attachment: http://down.51cto.com/data/2366662