Crosswalk crashing

Hi everyone,
I am encountering a serious problem when I am going to create crosswalk during shapefile import. When I select the crosswalk create option, it takes about 30 minutes to complete. At the same time my computer goes on a serious hang. Sometimes my computer’s monitor goes blank. And after completing the crosswalk creation process, BenMap software stopped to work. It shows an Error message. I can’t proceed to perform anything in this software. It’s a serious problem.
Configuration of my computer is,
RAM: 4 GB
Processor: Intel core i 5 (64bit)
Windows 10 operating system.

Regard,
Junayed