This article applies to Windows 10 or Windows Server 2016. This article will show the step-by-step process to verify the correct update has been installed on a computer that re-mediates the exploit used by the WannaCry ransomware.
Microsoft released updates during the March patch cycle that re-mediate the vulnerabilities the WannaCry ransomware exploits. As long as the cumulative update released in March or a more recent cumulative update is installed on a computer, the computer is not vulnerable to the WannaCry ransomware exploit.
Please Note: Updates in Windows 10 and Server 2016 are cumulative and supersede older updates. The KB numbers listed above may not be in the update history but as long as a cumulative update with a higher KB number is listed, a more recent cumulative update is installed
- Type Windows Update into the windows search bar and select Windows Update Settings
- Select Update History
- Search the Update History for an update that starts with Cumulative Update for Windows 10…
- Verify that the KB Number associated with the Cumulative Update for Windows 10 is one of the following or higher and that the update was Successfully installed
- KB4012606
- KB4013198
- KB4013429
Please Note: Updates in Windows 10 and Server 2016 are cumulative and supersede older updates. The KB numbers listed above may not be in the update history but as long as a cumulative update with a higher KB number is listed, a more recent cumulative update is installed