Can not upgrade to windows 11 Pro

[PrachiG]

Currently, Windows 11 Home edition is installed on Laptop.
Want to upgrade to Windows 11 Pro edition. Have ISO image to upgrade to Pro and also have licensed product key for Pro.

It tries installing windows 11 Pro but gives  below error  

[Paul_Tikkanen]

You don't upgrade from W11 Home to W11 Pro by clean installing W11 Pro.

If your installation had been successful, you would have been very unhappy to see a clean version of W11 Home installed instead of W11 Pro.

That is because the Windows installation media is the same for both Home and Pro and the installation media checks the Windows 11 OEM product key in the BIOS and uses that to decide what version of W11 to install.

In the case of your notebook, the OEM key is W11 Home.

If you installed Windows over and over again you would get the same result each time.

See this link for how to upgrade from W11 Home to W11 Pro:

Upgrade Windows Home to Windows Pro - Microsoft Support

[PrachiG]

I tried activating using product key, giving me below error:

[Paul_Tikkanen]

I recommend that you contact Microsoft for assistance with Windows activation:

Activate Windows - Microsoft Support