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Does anyone know how to install a new serial on a working copy of Windows 7 - I get notified that my software is not genuine but cannot reenter the serial

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You will be able to enter a new key when you try to activate Windows.

  1. Open Control Panel.
  2. Go to System.
  3. Click Activate Windows. (In case it is not activated) / Click Change Product Key on the lower half (In case it was previously activated).
  4. It will ask for a new Serial key.
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It does not give me this option - Instead I get only an option to go online and resolve which means buying a new copy – Jack Kada May 14 '11 at 14:59
Can you upload a screenshot of the System page and link it here? There will be an option to activate somewhere the page. – Ganesh R. May 14 '11 at 15:03

One easy method is to change the key via the command prompt:

  1. Click the Start orb
  2. Type cmd and press Shift+Ctrl+Enter to open an elevated command prompt.
  3. Type in slmgr.vbs -ipk followed by your new key
  4. Type slmgr.vbs -ato to re-activate if necessary.
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go to Control Panel\All Control Panel Items\System "Change product key" is at the bottom.

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protected by Community Dec 7 '14 at 13:27

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