there is usually a button on the activation screen that will allow you to contact microsoft.
what version of windows is it ?
microsoft does have tdd numbers for hearing impaired
i am not sure this would be the correct one but it is microsoft tdd and they might be able to give you the correct number
(TT or TDD) number at (XXX) XXX-XXXX
C&onsultant
30 years in nyc computer industry working with PC and networks banks brokerage legal etc.