Windows 10

• key is written in the bios so even a disk reformat doesn't whack it.
• from an admin cmd window run

  wmic path SoftwareLicensingService get OA3xOriginalProductKey

• OA3xOriginalProductKey - KBX2K-F4N9H-WHC93-6XV3T-QYH82

Results from https://www.nirsoft.net/utils/product_cd_key_viewer.html

==================================================
Product Name      : Internet Explorer
Product ID        : 00342-50642-23293-AAOEM
Product Key       : KBX2K-F4N9H-WHC93-6XV3T-QYH82
Installation Folder : 
Service Pack      : 
Build Number      : 
Computer Name     : M6800
Modified Time     : 1/2/2025 11:09:20 PM
==================================================

==================================================
Product Name      : Microsoft Office Professional 2010
Product ID        : 82503-001-0000007-69365
Product Key       : H62QG-HXVKF-PP4HP-66KMR-CW9BM
Installation Folder : 
Service Pack      : 
Build Number      : 
Computer Name     : M6800
Modified Time     : 1/3/2025 1:55:36 AM
==================================================

==================================================
Product Name      : Visual Studio (14.0)
Product ID        : 
Product Key       : HH3PV-9NBY3-F4KRJ-76QJG-BP2F6
Installation Folder : C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\
Service Pack      : 
Build Number      : 
Computer Name     : M6800
Modified Time     : 1/21/2025 1:06:48 AM
==================================================

==================================================
Product Name      : Visual Studio (14.0)
Product ID        : 
Product Key       : HH3PV-9NBY3-F4KRJ-76QJG-BP2F6
Installation Folder : C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\
Service Pack      : 
Build Number      : 
Computer Name     : M6800
Modified Time     : 1/21/2025 1:26:26 AM
==================================================

==================================================
Product Name      : Visual Studio (14.0)
Product ID        : 
Product Key       : HH3PV-9NBY3-F4KRJ-76QJG-BP2F6
Installation Folder : C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\
Service Pack      : 
Build Number      : 
Computer Name     : M6800
Modified Time     : 1/21/2025 1:22:39 AM
==================================================

==================================================
Product Name      : Visual Studio (14.0)
Product ID        : 
Product Key       : HH3PV-9NBY3-F4KRJ-76QJG-BP2F6
Installation Folder : C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\
Service Pack      : 
Build Number      : 
Computer Name     : M6800
Modified Time     : 1/21/2025 1:26:26 AM
==================================================

==================================================
Product Name      : Windows (BIOS OEM Key)
Product ID        : 
Product Key       : KBX2K-F4N9H-WHC93-6XV3T-QYH82
Installation Folder : 
Service Pack      : 
Build Number      : 
Computer Name     : 
Modified Time     : 
==================================================

==================================================
Product Name      : Windows 10 Pro
Product ID        : 00342-50642-23293-AAOEM
Product Key       : KBX2K-F4N9H-WHC93-6XV3T-QYH82
Installation Folder : C:\Windows
Service Pack      : 
Build Number      : 19045
Computer Name     : M6800
Modified Time     : 4/24/2025 6:56:09 AM
==================================================

• Upgraded both my big Dell laptops using the remaining Windows 10 disk.
• The upgrade used my existing Win 7 key so I have one remaining Win 10 key.
• DPWVC N47KM 6RRTD 6432K 2YT6P