How can I fix this?

[Windows Central Question]

Hi guys, I had installed an evalutation copy of Windows 10 and two weeks ago my evalutation period finished. My computer began turning off automaticly every 2/3 hours and when the evalutation period finished appearad a message on my screen telling me that I wouldn't have been able to switch on my computer if I hadn't upgraded my PC, but I didn't do this and now I can't use it. Could someone help me?

 

[xandros9]

I'm not sure about the rest of your post, but the two hour shutdown is a measure to annoy the user because you have not paid for Windows and you said your evaluation copy has expired, so that's supposed to happen.