I just installed the latest Windows Updates plus several older ones that I just got tired of seeing appear as available. (22 updates total). When i restarted computer a pop-up appeared the said "Reboot Required. A change occurred in your Windows License. You must restart your computer or Windowa will stop working."
Windows seems to be working just fine. Internet okay, as I am typing this from the computer with the warning message.

My concern is that when I eventually do a restart, am I going to have big trouble? Is this a genuine message or something caused by malware?

Please bear in mind that I really have little technical knowledge of computers. Just a casual user who is generally cautious.

Any advice on how to proceed would be greatly appreciated!

Thank you!