Windows 10: Windows 10: how can i check the window is having a legal activation

i am hemant sharma working as support engineer in a mnc where we are using the the windows 7 pro os on systems which are oem build with the systems. last month in trail we upgraded them directly to the windows 10 with the iso files directly they have been upgraded susses fully and activated automatically without asking any key or any thing."we didn't do any hack or crack to activate the windows."
window activated is having fully functioning and no issue is detected in this.
after that we have clean format the machine and install the win 10 clean install it also activated in machine automatically .
here is my questions for Microsoft team .
1. this is glitch from Microsoft or my windows 7 to window 10 is fully activated.
2. if it is Activated then i can do in other win 7 machines.
3. how can i check the window is having a legal activation

:)

 

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.

 

Windows 10 Tweaks

too be honest there is no reason not to legally own windows 10. It kind of irritates me people are spilling nonsense about KMS and activators all over the web. anyone on the average sophistication level atleast here on TPU probably own several windows 7 licenses at the least. Not to mention with all the sketch 3rd aprty site searching and scans with AV and dll hacks and reboots and step 4: unplug Ethernet cable you could just make a Ms account format to 7 upgrade to 10 and clean format if you so choose sign in again and be activated in the same amount of time.

 

Windows 10 Tweaks

Volume Key Licenses, find a way.