Mit takar ez a kód Windows 10-nél?

Kereső:

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első találat:

"/upk [<Application ID>]

This option uninstalls the product key of the current Windows edition. After a restart, the system will be in an Unlicensed state unless a new product key is installed.

Optionally, you can use the <Activation ID> parameter to specify a different installed product.

This operation must be run from an elevated Command Prompt window."

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tehát elvileg igen, eltávolítja a Windows termékkulcsát.