I want to upgrade from Windows 8.1 to Windows 10 in my Dell pro venue tab. When upgrading, it was asking for the product key. How to find the product key for Windows as well as Office in tab?
Windows – How to get the product key of Windows 8.1 preinstalled in Dell Pro Venue Tab
windows-10-upgrade
Best Answer
I always use Nirsoft's Produkey for this. Most reliable toolset for all sorts of such simple things. Highly recommended.
This is the answer you needed. For things beyond the original question, the following may help in addition to Fleet Commands's answer.
Regarding upgrading to or installing Windows 10, you might be better served with Fleet Command's answer and digging into this in more detail on Windows 10 upgrade specific forums like MSFN and MyDigitalLife.
Without assuming what licenses you are using legit or not, and I am not sure SuperUser will allow/ or support your licensing upgrade path, if it is not kosher in the eyes of Microsoft. I've found every forum has their own rules regarding 'licensing' tips/ hacks to prevent conflicts with Microsoft Corp.
The answer can vary a lot depending on the original license and version you have and the Windows 10 you are upgrading to and also variation between how OEM licenses from Windows 7 will give you Windows 10 but it may be for that machine only.