Reactivate the Windows10

[romil79]

I had Windows 10 in my laptop. But later I booted linux OS in the laptop. Can I reactivate windows again after Installing windows 10

[TryToDoMybest]

Hello

if you bought the laptop with Windows 10 Home, when you reinstall Windows 10 Home it will automatically be activated once connected to Internet

bye

[Lil_Boy_Blue]

Hi

Just to supplement the excellent answer given by "TryToDoMybest" you can of course DUAL boot, having Windows 10 and a Linux of your choice co-existing.

EG:-    Some guides....
https://ubuntu.com/tutorials/tutorial-install-ubuntu-desktop#1-overview
https://itsfoss.com/install-ubuntu/
https://www.cnet.com/how-to/how-to-install-linux/
https://www.wikihow.com/Install-Ubuntu-Linux

~~~~~~~~~~~

Your W10 key should be retrieveable using something like this.....

ShowKeyPlus from the Microsoft Store (probably the best choice).
https://www.microsoft.com/en-us/p/showkeyplus/9pkvzcprx9nv?activetab=pivot:overviewtab

The output is like this....
ShowKeyPlus - Windows Product Key Information

Product Name: Windows 10 Home
Version: 12345.678 (64-bit OS)
Product ID: 00000-00000-00000-AAOEM
Installed Key: 12345-67890-09876-54321
OEM Key: MICRO-SOFTY-WINDO-WSTEN-64BIT
OEM Edition: Win 10 RTM Core OEM:DM


ALSO
KeyFinderInstaller may help.…
It gives this…. – CD Key: 12345-67890-09876-54321

ELSE
There is a possibility of finding the same value in the Registry....
USING RegEdit the key is listed below and it’s content also shown.
Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SoftwareProtectionPlatform

BackupProductKeyDefault 12345-67890-09876-54321

Three different names for the same value in 3 different software methods.