Windows pushes out updates every few weeks. Normally these updates are taken care of automatically in the background, but occasionally you will need to run them manually. This will show you how to do that.
First, type in "update" to the Windows search bar and open "Check for updates"
Select Check for updates
Windows updates will now download and install in the background. When they are complete, you may be prompted to restart your computer.
After the restart, run through this process one more time as occasionally new updates will become available only after certain updates are already installed.