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28,661 questions
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Hi Yan Poon,
Kind of yes and no. Your questions need a bit more clarification. Which activation method are you using in your environment?
In general, a Windows 11 key will usually activate Windows 10, as long as the editions match. OEM keys might have some restrictions, but retail keys usually work just fine. However, if you're using a different activation method, that's a whole different story!
Look forward to hear from you soon.