To view your Windows Product Key, you can check the Certificate of Authenticity (COA) attached to a new PC or laptop.
You can also use Command Prompt by running it as an administrator and executing 'wmic path softwareLicensingService get OA3xOriginalProductKey' command.
Another method is to use the Registry Editor by navigating to HKEY_LOCAL_MACHINE > SOFTWARE > Microsoft > Windows NT > CurrentVersion > SoftwareProtectionPlatform.
Third-party tools like KeyFinder or ShowKeyPlus can also help in viewing the Windows Product Key by scanning and displaying the key information.