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Windows 8 activation key

HP Recommended
Probook 4440s
Microsoft Windows 8.1 (64-bit)



I had bought a wins 8 pro preinstalled laptop. Recently I upgraded it to win 10. But I have been facing the “100% disk “ issue that slows the system down considerable. 
I have done several changes to overcome the issue but it’s not been effective. (Search bar disabling, chrome setting, Skype setting, storeach setting )


I would like to go back to windows 8 pro. How can I find the key for that ? Since I have upgraded the system, I only have the HP product code and HP serial number. Thanks. 



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Message 2 of 2
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HP Recommended



If the notebook came with W8 from HP, the product key is in the BIOS.


Run the free utility that I zipped up and attached below that will show you the W8 product key and the version of W8 the key is good for.

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