Hi. I'm sorry to hear that you're having problems, but I'm here to help.
This means that you have a volume license, which expires after a certain number of days. Is this your personal computer?
My Dell notebook was Windows 7. Microsoft told me to upgrade to Windows 10. I upgrade it from Windows 7 to Windows 10. Last week I reset Windows 10. Today I found that “your Windows license will expire soon” ,” You need to active Windows in settings”. Could you please tell me what should I do?