Windows key updating tool
The first method for getting Windows 10 is to simply upgrade an existing (and activated) version of Windows 7 or 8.1.
As discovered by Ed Bott over at ZD Net, and independently confirmed by myself, the old method still works.
All you have to do is go to the Download Windows 10 page, click the "Download tool now" button and run the Media Creation Tool.
Select the "Upgrade this PC now" option and it will go to work and upgrade your system.
Open the System properties applet in the Control Panel of Windows 8; Control Panel\System and Security\System. If you have not entered your Product License Key and/or not activated your copy of Window 8, you will see a note to this effect in the Action Center.
You may also open the Win X menu and select System. Click on the link to enter your License Key and Activate it. You can also type -ato in the elevated CMD to activate your copy of Windows.
There are a couple of ways to get Windows 10 for free, and if you haven’t already done so, then it’s worth doing as who knows when Microsoft will close these loopholes?
You may for some reason need to change your Windows product license key – maybe you want to upgrade your copy of Windows to a higher version or maybe you want to change the default setup product key to a Multiple Activation Key.
Follow these steps if you want to change your Windows product key.
After upgrading your Windows 7 or Windows 8 installation to Windows 10, you might be wondering what product key you will use in case you want to do a clean install of Windows 10.
We’ve already tried using the Windows 7 (or 8 if that’s your case) key during a fresh install, and it didn’t work.