Updating to 10 5 2
Next, I used Windows Update to upgrade this system to Windows 10.
That worked fine, with one problem: My new installation of Windows 10 was for the Home edition. I clicked Change Product Key from the System Control Panel (there's an identical button on the Activation page in Settings). I clicked Start Upgrade, and after a few minutes, the system restarted.
Spectre, along with its sister vulnerability "Meltdown" are serious hardware-based exploits that take advantage of the speculative execution mechanism of a CPU, allowing hackers to gain access to sensitive information.
While Meltdown was addressed in the initial mac OS High Sierra 10.13.2 update, Apple said it would introduce a mitigation for Spectre in mac OS and i OS early this week.
As part of my testing, I used a Surface 3 that originally shipped with Windows 8.1 Home and had been upgraded to Windows 10 using a digital entitlement.
It had then been upgraded from Home to Pro using a Windows 10 product key from MSDN.
Microsoft's new activation rules for Windows 10 take some getting used to.
But I have a digital entitlement to Windows 10 Pro. As soon as I connected to the Internet, the Windows activation process checked my hardware against Microsoft's servers.
Because this hardware was already recorded with a digital entitlement to Windows 10 Pro, I was activated immediately, without the need to enter a product key.
Let's say you buy a new PC with Windows 10 Home installed by the OEM.
When you check the Activation page in Settings, it should look something like this: If you have a Windows 10 Pro product key, you can click the Change Product Key button and enter it here. If you don't have a Pro product key and you want to buy one, you can click Go To Store and purchase the upgrade for 0. But what if you have a Windows 7 Professional or Ultimate key, or a Windows 8/8.1 Pro key?
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I've been testing upgrade/activation scenarios on a wide variety of hardware recently to see how things work. I recently upgraded the SSD in an HP Spectre x360 that originally shipped with Windows 8.1 Home and had then been upgraded to Windows 10 Pro.