windows 10 licence key

[papajoetulun]

Hello. I tried to install linux on my laptop. And didn't save preinstalled windows 10 licence key. How can i restore it?

[Lil_Boy_Blue · Accepted solution]

Hi

sudo cat /sys/firmware/acpi/tables/MSDM | strings | tail -n 1

KeyFinderInstaller may help....
https://www.magicaljellybean.com/keyfinder/

Doing research, and none of the methods are mine, I have some, simple single lines of code that will list the same value for your Windows 10 Product Key…
Two for Windows 10 and one for Linux.

W10 Using cmd.exe as an Administrator (copy and paste accordingly).

wmic path softwarelicensingservice get OA3xOriginalProductKey >> c:\ProdKey.txt

Creates a text file called ProdKey.txt on your C:\ area.

Next is a PowerShell command, as Administrator...
(Get-WmiObject -query ‘select * from SoftwareLicensingService’).OA3xOriginalProductKey

but it will run within W10 using cmd.exe as an Administrator.
powershell (Get-WmiObject -query ‘select * from SoftwareLicensingService’).OA3xOriginalProductKey

Last, but not least....
Linux@Lubuntu:~$ sudo cat /sys/firmware/acpi/tables/MSDM | strings | tail -n 1

https://www.microsoft.com/en-us/software-download/windows10
https://www.microsoft.com/en-us/software-download/windows10ISO   Linux download page.