Your Windows license will expire soon. You need to activate Windows in settings.

Hi, my name is Niya and yesterday I went on my computer so I could watch some YouTube and when I started up my computer a message popped up saying: Your Windows License will expire soon. You need to activate Windows in settings. I clicked close and it popped up again. I decided to go to settings and I saw it said Windows is activated using your organization's activation service. A few month's ago about September or October I got my computer's hard drive replaced and they people who repaired my computer installed Windows 10 Pro on it. Once I got my computer repaired I installed the Windows 10 creators update. I do not think that caused the problem. My Windows 10 Pro is activated because I checked in settings and by going to This PC>Right clicking on This PC>Properties. It says Windows is activated. I am very confused on why I am getting the message. I do not own a copy of Windows 10. The people who fixed my computer and replaced my hard drive installed Windows 10 on my computer. Is there any way I could fix my computer and stop the message from popping up and not have my Windows License expire? Here are some pictures of the message.