Windows 10: Need help identifying the correct Windows 10 key

I'm about to upgrade my computer for the first time since Windows 10 came out, and it is a substantial upgrade including the motherboard. I have four computers in the house running Windows 10. Two of them use upgrade licenses from Windows 7, two have retail copies purchased from Amazon. My Amazon account has three keys: my two, plus one I purchased on behalf of a friend when I was setting up his new system.

I need to find out which product key is associated with this computer. It could be any of the three listed on my Amazon account one of which is not actually mine, or potentially it could be one of the upgrade licenses and I'd need to buy a new copy of Windows with my upgrade.

How in the world do I figure out which one is on one specific PC?

:)

 

windows 10 key

Thanks but I don't want to do any decrypting. I want to download a Win 10 ISO from Microsoft and install it using my Win 8 key. No other steps required. Is that possible?

 

Installing Windows 10 using Windows 7 key

Nope, you need to install Windows 10 first and make sure the Windows 7 key is transferred to your Windows account after you've installed Windows 10 (not quite sure how that works). I missed the last step and I could not activate Windows 10 after a re-install... Microsoft seem to have done everything they can to make it a PITA. Also, it's technically too late to do this now anyhow, as the upgrade offer has expired. But KMSPico works quite well...

As for getting rid of Windows, delete the Windows folder.

 

Windows 10 Tweaks

Pressing “Windows+Pause Break” (it’s up there next to scroll lock) opens the “System” Window.

Windows 10: In the new version of Windows, Explorer has a section called Quick Access. This includes your frequent folders and recent files. Explorer defaults to opening this page when you open a new window. If you’d rather open the usual This PC, with links to your drives and library folders, follow these steps:

• Open a new Explorer window.
• Click View in the ribbon.
• Click Options.
• Under General, next to “Open File Explorer to:” choose “This PC.”
• Click OK

credit to Lifehacker.