Have you purchased the correct key for your version of windows?
Is your computer connected to the internet
Have you tried restarting your computer
Do you have administrator privileges

Never encountered this problem myself but it looks the service handling key activation failed.

I know it sounds cliche but have you turned it off and on again?

Ive tried turning my PC off. I purchased the key earlier and I still cant figure out what the problem is. I dont want to contact windows because it is a drag lmao

Where did you buy the key from can you not just ask for another key?

I saw this on someone elses post.

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curriechowmein wrote I saw this on someone elses post.

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Kinguin has been known for shitty oem keys the oem keys arent legit either your key was stolen or somebody else used it thats probably why its not working.

Vial wrote

curriechowmein wrote I saw this on someone elses post.

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Kinguin has been known for shitty oem keys the oem keys arent legit either your key was stolen or somebody else used it thats probably why its not working.

I just want to activate my windows. I cant afford anything else now.

Windows 10 Enterprise activation is handled differently from consumer versions.

What version of Windows did you install and and what version did you buy the key for? You can easily change the version by using the KMS client setup key for a different version.

You can find the KMS keys for all versions of Windows here: [ Register or Signin to view external links. ]

To enter a new key, go to Activation in settings and click "Change product key".

You're seeing that error because the Enterprise and Education versions of Windows typically use a company activation server to license the OS over a network.