Hello everyone, (post edited to make it less wordy)
I can see that this is an open issue for a while now, and I want to do my best to address it.
1) Saving your UI and Toolbars is a great way to insure yourself from losing cycles having to rebuild your interface, if this problem does indeed occur. To keep this post informative and useful, I have included links to the knowledge network about saving out the UI here, here, and here.
2) This problem has bee logged as 3 separate cases. They have all been closed because the issue was not able to be reproduced. It was not ignored, as there are over 100 comments between the support specialist and the developers on this issue.
3) The file in question seems to be 3dsmax.ini. This is referenced in earlier posts in this thread, and also here. From this link we see the line:
"3dsmax.ini: This file gets updated when you start and exit 3ds Max, as well as when you change most Preferences settings."
There are a couple things we can try in the meantime:
1) Before closing max, check to see if you have multiple 3dsmax.exe processes in windows. You can do this easily by right clicking on your taskbar in Windows and selecting "Start Task Manager" in windows 7. (I apologize that I don't use win8 or 10, but I assume that the process is similar.) Once you have done that, arrange the processes on the process tab by name, and max is usually on the top there. Make sure there is 1 process for each copy of max that is currently open.
2) When you close a copy of max (or one crashes) make sure that the process isn't still in the Task Manager. If one extra is still there (and it shouldn't be) right click on it and End the Process. Once you are sure, close 1 copy at a time and make sure that the process is shutting down before closing the next.
"But what if I'm not sure which process is the currently open one?" This is a good point, you can check by going to the Task Manager and clicking on the "Applications" tab. Right click on the open copy of 3dsmax there, and select "Go To Process" The currently open copy of max will be highlighted, and the 'stuck in I/O shutdown" one will be the other.
If this doesn't work, or doesn't solve your problems, please list whatever symptoms or conditions might have occurred during your usage. I appreciate your patience and help in getting to the bottom of this. If you can somehow reproduce this issue on command, please let me know how you did it and we'll go ahead re-enter it into the tracking system. I just need to be able to reproduce it so I can give them all the info they need to solve it. Thank you! In the meantime, save your UI as this is the best solution for now.
Best Regards,