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Old windows PC not showing up in Activation Troubleshoot after hardware change

Markus H 0 Reputation points
2026-03-25T18:11:11.0266667+00:00

Hey,

after a complete hardware change (mainboard, drives, cpu, garphics card, RAM) i wanted to reactivate windows, but i got error 0x803fa067 . Tried to change the product key manually but it also didn't work out. Tried the option "I changed hardware on this device recently" but my old Windows (Pro) was not shown. In my account the device is shown (also with the right version: Windows Professional). Also did the "Get Help" dialog but to no avail as my installation id was not getting accepted either?!

If anyone has tipps on how to solve this issue i would be garteful.

Windows for home | Windows 11 | Licensing and activation
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  1. EmilyS726 222.5K Reputation points Independent Advisor
    2026-03-25T18:45:01.1766667+00:00

    Hello,

    How did you obtain your license initially?

    Did it come with the device preinstalled, or did you purchase it?

    If you purchased it, did you purchase from Microsoft, or from third party? Also was it purchased as a full license or upgrade license?

    Is it originally a Win7/8 key?


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