Microsoft Windows 10 is suppose to update automatically, but sometimes the update gets stuck and you need to verify the status or that your up to update.
The best way to check updates is to do it yourself.
I did find this Youtube video that easily explains how to update your Microsoft Windows 10.
Instructions
1. Click Start (It should be at the bottom left side)
2. Click Settings (It looks like a gear)
3. Click “Update and Security”
When there is a big update that needs to be installed and the computer has to restart, then you may have to repeat the process until the screen informs you that there is “No More Updates“.
This is one of the best and free way to protect your computer.