: If the wizard doesn't show a number, you can find your regional support line by running slui.exe 4 in the Windows Command Prompt.
: Open any app (like Word), go to File > Help , and click Activate Product Key . If the button is missing, your product is already active. activar microsoft office 2010
: If the internet method fails, choose "I want to activate the software by telephone" in the Activation Wizard. : If the wizard doesn't show a number,