i can't activate after changing to a different hard drive

Göker Topyan 0 Reputation points
2026-10-22T20:53:55.6066667+00:00

I moved my Windows installation to a different hard drive, and now I am unable to activate Windows. I had previously changed the processor and graphics card, and added a new hard drive, without encountering any issues.

When using the troubleshooter, I select the option "I changed the hardware on this device recently." After selecting the computer I am using and checking the box, I click "Activate." However, I receive the following message: "We can't reactivate Windows on this device. Please try again later."

By the way, I purchased a retail key from a third party.

Windows for home | Windows 10 | Licensing and activation
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  1. Igor Leyko 112.5K Reputation points Independent Advisor
    2026-10-23T18:42:14.62+00:00

    Sometimes Microsoft may block product key after five hardware changes. See 0xC004F034 error description at https://support.microsoft.com/en-us/windows/activation/get-help-with-windows-activation-errors

    You may contact Microsoft support via https://support.microsoft.com/contactus/ page. Try different answers to break thru robot system.

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