Windows Product Key Viewer (WinPKV) provides an easy way to view, copy, save or print your Windows product key.
It can read the key from any version of Windows XP, Windows Vista, Windows 7, 8, 8.1, 10 and Windows Server.
You can also easily change the Registered Owner, Organization name and the computer name.
No need to install just unzip and go.
Windows Product Key Viewer