Does crash generate a minidump file for You?
It could be in this folder:
Could You please archive it and send it to us?
If there is no *.dmp file then You can generate minidump Yourself using process explorer
During the freeze, run the Process Explorer, find the "3dsmax.exe" process, select it, go to Process > Create Dump > Create Minidump... and save the file.
Compress it and send
using wetransfer or similar sharing site. We will take a look into it.
Please make sure You are using 3dsmax with latest service pack. Otherwise we can't analyze it.