Hi,
I see your issue, the crashing of CW for DSP56F800E ver8.x tools on Win10 OS is a known issue, I appologize for the inconvenience, because the tools is a bit old, it has not be upgraded for a long time, I will report it to CW team.
Now you can try to use CodeWarrior for MCU ver11.x, create a new project, then port the old code or use PE to add application code.
I am sure that the CodeWarrior for MCU ver11.x tools is okay and support the MC56F82xx family.
Regard
XiangJun Rong