NSA & Microsoft urge Windows 10 users to update immediately

Update Windows 10

Please update your windows 10 machines as soon as possible.  The NSA has reported a vulnerability in Windows 10. After you have updated, please reboot your computer for the patches to take place. After the reboot, go back and ensure there are no more updates that need to take place. 

They are mainly targeting Government and Businesses.

If you need to update manually, follow these steps listed below.
when you are at your Windows 10 computer, click the Start button, select Settings, then Update & Security, then Windows Update, and click Check for updates to run Windows Update manually.