Resident Evil 6 only supports one active save slot per profile. Starting a "New Game" will overwrite your current progress.
Copy your current savedata.bin from the path above to your desktop as a safety measure. save game resident evil 6 pc
C:\Users\YourUsername\AppData\Roaming\Steam\steamapps\common\Resident Evil 6\RE6\Save Resident Evil 6 only supports one active save