Windows 10: how can i buy a genuine authentic serial number for my windows 10 pro

I have an illegal SN for my windows 10 pro

as a new year resolution, I want to buy a legal one online

I hope Microsoft can forgive me and accept my deep apologies

thank you

:)

 

Windows 10 serial on OEM


So I'll summarize steps made...

1. Saved serial number (taken with Belarc Advisory) from preinstalled (half chinese language) Windows 8.1 (don't know exactly the version, suspect Windows 8.1 with bing) on tablet
2. Formatted tablet
3. Tried to make a clean Windows 10 (HOME, HOME N and also PRO, everytime with the same result) install with ISO taken with MediaCreationTool, during install (and also after completing installation) it says that the saved serial is not valid
4. Tried to reinstall Windows 8.1 (ISO taken with MediaCreationTool again) HOME, it says that the serial is not valid

So i suspect that the saved serial, is from a WINDOWS 8.1 WITH BING OEM version and this kind of ISO is not accessible/downloadable anywhere (at least I can't find it, any suggestion?)

Still not tried SHOWKEY with that serial, I am in office now, and the serial is saved on a usb pen at home, will try this evening.

So I'm stucked but if everything is like I suspect, it's incredible. If I have a tablet/notebook/netbook with Windows 8 preinstalled, it seems that I can update to Windows 10 without problems, but if I want to make a clean Windows 10 install that serial is not valid...

 

Can the serial number of Windows 10 Pro be installed on Windows 8.1 Pro

Can the serial number of Windows 10 Pro be installed on Windows 8.1 Pro

 

Upgrading stock Windows 10 Home to pro with BizSpark serial number

Sorry, but the forum you suggested doesn't have any category related to Windows Activation. MSDN forums are generally development forums and my problem is of a different nature.

Can you please tell me if OEM Windows 10 activation with Windows 10 Pro serial number from BizSpark MSDN is possible? If yes, how to perform it. If no, why isn't?

Thanks