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This article introduces what kb4012212 means, the content is very detailed, interested friends can use it for reference, I hope it can be helpful to you.

Recently, many friends said that after turning on the computer, 360security guards always remind them to install kb4012212. So what is kb4012212? what if the kb4012212 update fails? Without saying much, next, let's get to know it together.

What is kb4012212?

Kb4012212 is an effective patch against WannaCry Eternal Blue virus.

What if the kb4012212 update fails?

Before installing the patch, make sure that the windows updata service is started as follows: run CMD as an administrator and enter command line: netstart WuAuServ. If it shows that the service has started, it means that the service has started, and if not, the command will also start the windows updata service.

1. Scan with PC manager vulnerability. If the patch whose kb number is kb4012212 is intelligently ignored, the processing method is as follows:

2. Select the ignored kb4012212, cancel the ignore, and install the patch. If the installation ends successfully and the installation fails, please see step 3 and cancel the ignore procedure:

Click-- > Toolbox-- > Fix vulnerabilities on the butler's main interface to enter the repair page.

In the fix vulnerability page point-- > ignored, go to the patch manager page, in the patch manager page point-- > ignored patch-- > check kb4012212, click cancel ignore button

3. Open: computer Management-- > event Viewer-- > setup-- > see the error message (source is WUSA)-- > if the error message indicates that the Windows update "Windows Security Update (KB4012212)" cannot be installed because of an error: 2147956498 "component storage is corrupted" (as shown below), proceed to step 4.

4. According to the Microsoft announcement, the error is mainly caused by not installing patch KB947821. Patch KB947821 needs to be installed first. Please download the patch KB947821 installation according to the version number of the computer operating system.

About what kb4012212 means to share here, I hope that the above content can be of some help to you, can learn more knowledge. If you think the article is good, you can share it for more people to see.

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