And yes, it crashed several times while the render was being processed!!
Very recently, a prolific script writer/ Senior Visualiser and Photographer called David Venables has created an ingenious and simple script that allows users to set 3Ds max to automatically save the render periodically while still being processed in the frame buffer.
To save this script, simply open 3Ds Max, followed by clicking on the MAXScript button from the main toolbar, and choosing the MAXScript Editor option from the dropdown list.
Its dialog should open. Next, copy and paste the above mentioned script onto the dialog’s text field.
This can be changed manually. For instance, the default path could be saved in the following location: C:\Users\Public\Pictures
In addition, the script automatically sets the saving frequency to every 2 minutes: (2*60*1000).
This default timer can also be changed by simply typing in a different number you may find more adequate (i.e. replace nr 2)!
Note: If using a different version of Max, simply save the script in the adequate 3ds Max folder (i.e. 3ds Max 2013; etc).
Next, close and restart 3Ds Max. Render anything that would take longer than 2 minutes to test whether the script works or Not.