Most modern non-Steam installers use the local app data folder to store user profiles.
Some versions store data in the global application folder rather than a specific user folder. Path: C:\ProgramData\RE6 or C:\ProgramData\Steam\RLD!
Copy the savedata.bin file to an external drive or cloud storage.
Press Win + R , type %localappdata% , and look for the "Resident Evil 6" or "CAPCOM" folder.
The ProgramData folder is hidden by default. You may need to enable "Show hidden files" in Windows Explorer settings.
Older or portable versions may keep the save files directly within the folder where the game is installed.