This guide explains how to check for Windows updates in Windows 10 and Windows 7.
Windows 10
Option 1:
Go to this link https://support.microsoft.com/en-gb/help/4027667/windows-update-windows-10 and click the "Check for updates" button. You may get a pop up asking if you want to allow the link to open the settings app. Click Allow.
Once the settings app opens click Check for updates or Install Now
