windows8 activation after hardware change

I purchased VAIO E series laptop with inbuilt windows 8.Due to some problems on hardware motherboard and LAN card are replaced.Now I install windows 8 but it is not activated and i forgot my product key.please give me solution to activate my license copy.
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  1. Best answer
    Either the activation key is printed on the laptop, usually on the bottom.
    Contact Sony for it
    Contact Microsoft. In case of a motherboard fail and replace, they will reactivate it.
  2. Hi

    If you have work done by Sony dealer using correct motherboard and you used a Genuine Sony Recovery DVD
    you should have no problems reactivating without needing to enter the key

    If you have got a copy of Win 8 which is not a Sony version you will need the key which if Microsoft thinks is still in use you will have problems

    Ask Sony how much a recovery disk set costs

    If you made a Windows Recovery Set before the incident you would get a version which checks it is on the correct Sony motherboard type then activates without needing a key.

    Mike Barnes
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