In 2000, Microsoft released Automatic Updates to try to make sure that Windows computers connected to the Internet were getting the latest patches for their Operating System.
This is a practice you should also get into regarding your computers as well.
Please check yourself at least monthly to make sure that automated updates are being applied to your computer.
You should also make sure that your applications you have installed on your computer get updated as well. Most applications now have their own update utility built in and some operating systems have application stores that update those applications as updates become available. Until there are application stores for all operating systems please make sure your editing, viewing, watching and listening software is all up to date.