Is there some command to make sure people cannot see the windows key with some app?

Discussion in 'Windows 7' started by msr, Jul 26, 2010.

  1. msr

    msr MDL Senior Member

    Dec 27, 2007
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    I have installed win 7 and office 2007 on a computer, is there any way to make sure a person cannot see the keys or bring up these keys from some app, and use them again.

    Can the keys for win 7 and office 2k7 stay hidden even though activated.
     
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  2. killercat

    killercat MDL Member

    May 28, 2010
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    im curious too ^^
     
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  3. MasterDisaster

    MasterDisaster MDL Expert

    Aug 29, 2009
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    In Windows 7, slmgr -cpk will clear the product key info in the registry.
     
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  4. urie

    urie Moderator
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    May 21, 2007
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    #4 urie, Jul 26, 2010
    Last edited: Jul 26, 2010
    Yes put password in bios section so they cant even boot up your machine. Other than that you've had it if you want to give them access to use your machine even setting them up as another user with restrictions so they cant run any other software than what you've allowed won't work. they could still boot with USB device and grab the keys with dos based keyfinder of even boot with a PE cd and get keys.

    Edit I forgot as MasterDisaster said with slmgr activations type key can be removed.
     
  5. MasterDisaster

    MasterDisaster MDL Expert

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    #5 MasterDisaster, Jul 26, 2010
    Last edited by a moderator: Apr 20, 2017
    The cpk technique can be used for other MS software too, but it requires careful editing in the registry

    for example, export the key and edit the digitalproductID part with a notepad
    Code:
    "DigitalProductId"=hex:a4,00,00,00,03,00,00,00,35,35,30,33,34,2d,32,39,32,2d,\
      30,30,30,30,30,30,37,2d,38,35,32,30,38,00,aa,00,00,00,58,31,35,2d,33,39,36,\
      34,34,00,00,00,00,00,00,00,cd,50,c7,8f,86,09,0f,1d,8e,7c,b3,a3,03,b8,00,00,\
      00,00,00,00,74,a7,d0,4b,e0,0c,4f,7b,00,00,00,00,00,00,00,00,00,00,00,00,00,\
      00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,\
      00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,\
      00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,5a,90,89,bd
    
    The highlighted part needs to be changed to zeroes for clearing the key.

    The key gathering programs look for that specific offset (0x34-0x41) to decode the base24 bytes
     
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  6. msr

    msr MDL Senior Member

    Dec 27, 2007
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    Thx does that only clear win 7 key and not office key?
     
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  7. MasterDisaster

    MasterDisaster MDL Expert

    Aug 29, 2009
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    Yes, it clears Windows 7 key only.
     
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  8. msr

    msr MDL Senior Member

    Dec 27, 2007
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    but leaves activation does it?

    Also what would i put to get rid of office key ofr 2k7 office pro?
     
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  9. urie

    urie Moderator
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    May 21, 2007
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    Small question wouldn't system restore not replace registry entries ?
     
  10. MasterDisaster

    MasterDisaster MDL Expert

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    Activation remains intact.

    For office 2007 you'll need to do some manual editing to the registry entry.
     
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  11. MasterDisaster

    MasterDisaster MDL Expert

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    #11 MasterDisaster, Jul 26, 2010
    Last edited: Jul 26, 2010
    Yes, system restore will restore the registry.

    But if you make new restore point and delete all previous points then the registry cannot be replaced.
     
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  12. ailef

    ailef MDL Senior Member

    Nov 30, 2007
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    what's the difference bewteen slmgr -cpk and -cpky ?
     
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  13. Dre009

    Dre009 MDL Addicted

    Oct 26, 2009
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