OK, now you can upgrade to Windows 10
Those who don’t want to deal with all the bugs associated with a new O/S release usually wait until a “point” release, e.g. Windows 7.1.
Looks like we have the equivalent of the 10.1 release and even Microsoft acknowledges it.
Microsoft’s message to businesses is that if they were following the traditional policy of waiting for the first Service Pack or major update to Windows before deploying it, this is it: time to take the plunge.
So if you’ve been waiting to upgrade. Now is the time!
Source: Windows 10 November Update: features, fixes, and enterprise readiness | Ars Technica