Tried everything, reinstalled pywin32 and win32crypt, but the error still persists. Python version 3.11.0. Example of code wit this libvary import win32crypt data_to_encrypt = b"test data to encrypt" encrypted_data = win32crypt.CryptProtectData( data_to_encrypt, None, None, None, None, 0) print("Encrypted:", encrypted_data[1]) description, decrypted_data = win32crypt.CryptUnprotectData( encrypted_data[1], None, None, None, 0) print("Decrypted:", decrypted_data.decode()) Continue reading...