I know the upgrade for Windows 10 has ended on 29 july 2016. So now, can i legally upgrade with "Download tool" (because it works now) ? Or is any restriction for business users? I want more details if is any restrictions on instalation...
Your question isn't related to the upgrade (it's still possible), it's related "do I receive a legal W10 upgrade license".
Due to the free upgrade for Windows 10 has ended on 29 july 2016 it's imho not legal, because you haven't a valid Windows 10 license. You need either a volume license contract (software assurance)
or buy a separate Windows 10 license with a key.
Blogs: http://www.borncity.com/blog /(Ger) - and - http://borncity.com/win/ (EN)
So, i received a W10 license. I had a W8 license integrated in bios OEM key (original, when the laptop was bought) and with Media Creation Tool, i upgraded to W10. The W10 license that i received is legal? Is ok?