How to processing sentinel 1 S1A to the polsarpro v4.0?

Thank you for your reply !!
My problem is how to do with polsarpro V4.0? or that’s especially for the Polsar 5.1 ?? I try with 5.1, according to your procedure that you mention on the link below PolSARpro_v5.0-problem with main input directory
Help installing PolSARpro software step by step on detailed on the windows 7 system
But he asks me to go back with the 64bit snap and I do it and he mentions an error when I add “the path name”. So how does that ??
Thank you