We are currently using Windows 10 for non-engineering uses. There are issues outside of Inventor that indicate Windows 10 should not be used. The worst of these issues is that Windows 10 does not correctly arrange Windows in, for example, various modes, such as “Side by Side”. For that reason we would not consider going to Windows 10.
Microsoft has been very slow to recognize these issues, so if you are considering “waiting” it could be a very long one. We do install all updates, so there is no such thing as a fix for this.
Also, Microsoft has designed access to arrangement of Windows in a totally incomprehensible place. You need to click on the Time function on the Task bar with your 3rd finger. This was a recent discovery because it is so out of place.
One thing Microsoft has done is make Windows 10 available on a thumb drive, whereas it was only available for download. However all their other software is only available for download. Autodesk is trying the same scam, but so far the dealer we work with had made Autodesk software available to us on thumb drive media for an extra amount. Most other software vendors are attempting to line their pockets similarly. Good luck if you have a disastrous crash and have to recover. You'll need an as yet to be released affordable download speed or be willing to be tied up for a week doing downloads. Other than that, such a process could put you out of business at some point if you must rely on downloads. It seems they might be trying to insure a method of placing us all back in the Dark Ages. Don't expect an alternative from Microsoft, as they will tell you there is none, at least for Office products. Grrrrrrr! Of course this all awaits the specter of competitors that see the opportunity.