Find your Windows product key

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key

Lost the product key that comes with your Windows installation disk? Not to worry — it is lurking deep inside Windows.

From your Start Menu, choose Run, then type REGEDIT in the box and
click OK.

For Windows 95, navigate to
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion and look for an entry in the right pane called “ProductId”

In Windows 98 and ME, navigate to
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion and look for an entry called “ProductKey”

In Windows 2000 and XP, there are in fact two entries, both called
“ProductKey”, one under
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion and another in
HKEY_LOCAL_MACHINE\Software\Microsoft\WinNT\CurrentVersion.

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10 thoughts on “Find your Windows product key

  1. Hi,

    I need to find the product key for my work computer and it does not have a sticker on it with the number on it. I have already erased the hard drive and now trying to re-install windows and i need the product key to do so.
    if you know of a way to fix my problem that would be great.

  2. i only have the installation disk, i lost the product key….and a different windows was installed in my pc, is there anyway i can find the product key in the windows vista installation disc that i have?

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