Windows 10: Second Hand Laptop Telling Me I Need To Activate Windows

Got a laptop from someone on facebook marketplace. Was fine for about a month until it started popping up with messages telling me I needed to activate windows and instructing me to go to settings. In settings, under activation, I get this error message:We can't activate Windows on this device because we can't connect to your organisation's activation server. Make sure that you're connected to your organisation's network and try again. If you continue having problems with your activation, contact your organisation's support person. Error code: 0x80072f89For reference the laptop is an Acer Aspi

:)

 

Product Key Activation for second hand laptop?

I got a notification on my acer laptop (touchscreen) saying the windows 10 enterprise licence will expire soon and that I need a product key or something. I tried looking for ways to find the product key, but this is a second- hand laptop, I didn't receive the packaging or anything with it, so I'm not sure what to do ;-; I can't ask the person who gave it to me either. Is there a different way to activate it?

 

Reinstalling Windows 10 with a laptop bought second-hand

And my Activation screen:

 

Reinstalling Windows 10 with a laptop bought second-hand

It's already got Win 10 Home 15063.674 on it. Activated and running.

Reinstalling Windows 10 with a laptop bought second-hand - Windows 10 Forums