Staying on windows 7, isn't possible once we've upgraded to windows 8.1 we'd lose all our data. Secondly Windows 8.1 is still technically windows 8, it utilizes the same kernel and has most of the features are common, therefore it would not be unreasonable to expect a program that works on windows 8 would work on windows 8.1.
Wait SP1 for 2014 and All OK for Win 8.1, see
Make a copy/backup of your data. If it's worth doing, it's worth backing up.
Summary of Issues Fixed by this Service Pack
Cannot launch Inventor on Windows 8.1 Preview operating system.
I don't get it.. Is god/obama/someone forcing people to move to Windows 8.1 ??
Surely your IT department is not...
"If you want to be a front runner expect to get hit by a car every now and then"
the RTM verison of the service pack is out for Inventor 2014
So have any of you installed 8.1 and are using IV Pro '13? Is it working ok?