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Change the product key by deactivating Windows XP

Find out how to enable re-entry/change of product key by deactivating Windows XP SP1 or SP2.

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This tip explains how to change the Product Key by deactivating Windows XP SP1 or SP2.

To deactivate Windows XP, simply browse to the windowssystem32 folder and delete or rename the file WPA.DBL. This will allow you to reactivate XP with another Product Key by activating using the telephone/change product key. It is easier than editing the registry to deactivate.

This was last published in September 2005

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