C/C++ :: Console RPG SHA-256 Checksum

So I'm making a console rpg and after the task of making my save/load functions I began making a sha-256 checksum so the save file can't be edited. I've pretty much all of the code but when I save the game and the checksum of that save file with my save function, I go back to load it and it always goes to the statement that says the checksums do not match and when I check the chksum.dat the hash is the same every time, here is my code:

#include <iostream>
#include <conio.h>
#include <windows.h>
#include <string>
#include <stdlib.h>
#include <stdio.h>
#include <cstdlib>
#include <windows.h>
#include <fstream>
#include "sha256.h"
using namespace std;
void MaximizeWindow() {

[Code] .....