A corrupted save file usually shows as a missing save slot, a crash when you try to load, or an in-game error saying the save is unreadable. Most of the time, a recovery option exists — the game itself often creates a backup without telling you.
Work through these steps in order before giving up.
Step 1: Check for a .bak Backup File
Many games automatically write a .bak (backup) file alongside the main save. It’s a snapshot from the previous session — one step behind, but usually intact when the main file isn’t.
Navigate to your game’s save folder and look for files with names like:
save.baksave_1.bak[savename].bakbackup_save.dat
If you find one:
- Close the game completely
- Rename the corrupted main save file (e.g.,
save.sav→save.sav.corrupt) — don’t delete it yet - Rename the
.bakfile to match what the main save was named (e.g.,save.bak→save.sav) - Relaunch the game
You’ll lose the most recent session but likely recover everything up to the session before the corruption.
Step 2: Use Steam Cloud to Restore a Previous Version
If the game uses Steam Cloud, Valve keeps a short history of synced files. There’s no official UI for this in the Steam client, but you can access it through the browser:
- Go to store.steampowered.com/account/remotestorage
- Find the game in the list and click Show files
- Check the timestamp on the cloud save — if it predates the corruption, you can replace the local file with the cloud version
To force Steam to use the cloud version:
- Rename or delete the corrupted local save file
- Launch Steam, right-click the game › Properties › General, toggle cloud sync off and back on
- Launch the game — Steam should re-download the cloud version
Step 3: Check Windows Previous Versions
If you have System Restore or File History enabled on Windows, you may be able to restore an older version of the save folder:
- Open File Explorer and navigate to the game’s save folder
- Right-click the folder › Properties › Previous Versions tab
- If backups are listed, select one from before the corruption occurred
- Click Restore or Open to copy specific files out without overwriting the whole folder
This only works if System Restore was active before the corruption. It’s disabled by default on many Windows 11 installs — worth enabling now to protect future saves.
Step 4: Check the Recycle Bin
If the corrupted save was “replaced” by a bad file, the original might be in the Recycle Bin if it was overwritten via a move rather than an in-place write. Open the Recycle Bin, sort by Date deleted, and look for save file names from the affected game.
Step 5: Try a Save Editor (Game-Specific)
For popular games, the modding community often builds save editors that can repair certain types of corruption — specifically, checksum mismatches, truncated file headers, and bad flag states. Search for [game name] save editor or [game name] save repair on Nexus Mods or GitHub.
These tools are game-specific. They won’t work on arbitrary saves but can be effective when the file structure is known.
Step 6: Check the Drive for File System Errors
If corruption keeps recurring, the problem may be the storage drive rather than the game. Run a file system check:
- Press
Win + R, typecmd, right-click and select Run as administrator - Type
chkdsk C: /f /r(replaceC:with the drive your save is on) - If the drive is in use, Windows will schedule the scan for next reboot
- Restart — the scan runs automatically and repairs repairable errors
If chkdsk reports bad sectors it couldn’t fix, the drive is failing. Back up everything immediately and replace the drive.
When the Save Is Not Recoverable
If none of the above steps work and no backup exists, the save is likely gone. The game’s internal data structure is too specific to reconstruct without a readable file to start from.
Going forward, the only reliable safeguard is a manual backup copy stored somewhere no cloud sync or game process can reach. Copy the save folder to an external drive or a separate cloud folder after every significant session.