Note that this blog was written on August 4, 2015. The information below holds true until Autodesk states otherwise.
I know most of you Windows 7 (or Windows 8) users are now getting the notifications to upgrade to your free version of Windows 10. Aside from the Windows 10 bugs that I'm reading about online (and all new releases of operating systems have bugs) there is a more important reason to not upgrade just yet.
From Autodesk: "Windows 10 is not yet an officially supported operating system across the Autodesk product line. Autodesk intends to support many of our key products on Windows 10 and will add products to the list of products supported on Windows 10 as updates and future versions are released. Product Support will provide their best effort to assist customers who have issues with current Autodesk products running on Windows 10. "
And remember, unless otherwise indicated by Autodesk, the odds are that the only Autodesk products that will be supported on Windows 10 will be the current version (2016) plus three versions back (2013, 2014, 2015) should Autodesk happen to release a supported statement today. In other words, they will not try to make 2012 or earlier versions of the software compatible to Windows 10. Those are products that are no longer supported by Autodesk.
For more information on this read here: Windows 10 and .NET 4.6 support for Autodesk products