Yes. A restart is required after most updates are installed when prompted to do so. Changes made to the system from the updates won't take affect until then.
If you're using Windows 7, please be aware that after January 14, 2020, you will no longer be able to update that OS as the end of extended support ends on that date. So you will need to migrate to another OS at that time.. like Win 8 or 10 (or Linux if you like). There is an update that was included during the last patch cycle (KB4493132) that will remind you of this. That update isn't needed BTW so you can uninstall it if you want. Unless you want or need the periodic reminder.
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