C::\Program Files(x86)\Arduino\libraries\SoftwareSerial/SoftwareSeial.h
This looks like a user-downloaded library file, not the core library file. If is IS a user-downloaded library location, delete the SoftwareSerial directory.
C::\Program Files(x86)\Arduino\libraries\SoftwareSerial/SoftwareSeial.h
This looks like a user-downloaded library file, not the core library file. If is IS a user-downloaded library location, delete the SoftwareSerial directory.