"Unable to activate Windows" error

  • Thread starter Thread starter EthanChai1
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EthanChai1

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I am having a problem when activating Windows on this Toshiba Satellite L550. I typed in the product key and I clicked "Activate". It just took some time and it went into an error. It says "Unable to activate Windows, We can't activate Windows on this device because you don't have a valid digital licence or product key. If you think you do have a valid licence or key, select Troubleshoot below. (0x803fa067)."How to activate Windows again on this computer?

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