Hi

You cannot really lose it, to view your W10 key ....

Belarc Advisor will give an overview of your system with Licence keys included.

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Using Command Prompt (CMD)

• Open the Start menu, type cmd, right-click on Command Prompt, and select "Run as administrator".

• Enter the following command and press Enter:

• Your 25-character product key will be displayed if it is stored in your system's BIOS/UEFI

2. Using PowerShell

• Open the Start menu, type PowerShell, right-click on Windows PowerShell, and select "Run as administrator".

• Enter this command and press Enter:

• text

  (Get-WmiObject -query 'select * from SoftwareLicensingService').OA3xOriginalProductKey

• The product key will be shown if available in your system firmware

3. Using the Windows Registry

• Press Windows key + R, type regedit, and press Enter to open the Registry Editor.

• Navigate to:

• Look for the entry named BackupProductKeyDefault-this may contain your product key

4. Third-Party Tools

• Utilities like Belarc Advisor, Magical Jelly Bean KeyFinder, or LicenseCrawler can scan your system and display product keys for Windows and other software