Disk | There Was An Unhandled Exception Trying To Save Your Rom To
If this works, move your save folder to a non-synced location (see Solution 3). Solution 5: Check for "Read-Only" Status Right-click your emulator folder and choose . Uncheck the Read-only box and click Apply .
Move that file to a different folder (to back it up) and delete it from the original location. Try creating a new save from within the game. 5. Check Disk Space and Drive Status Ensure that your hard drive is not full.
Sometimes, the ROM file itself or the folder it resides in is marked as "Read-Only," meaning the operating system explicitly forbids any program from modifying it. Go to the folder containing your ROM file.
Check the ROM's region (USA, Europe, Japan) against the tool’s documentation, as mismatching regions frequently trigger unhandled exceptions. Advanced Fixes
Create a new folder directly on your desktop or a secondary drive (e.g., D:\Games\ROMs ). If this works, move your save folder to
When this happens while saving a ROM, it means the emulator tried to write your game data or updated ROM file back to your storage drive, but the operating system blocked the action. Top 5 Causes and Solutions
This error message is the ultimate in "hardcore mode" gaming. It strips away the safety net of modern auto-saves and cloud backups and forces you to stare into the abyss of "Corrupt Data."
Check your drive for "No space left on device" errors. Try clearing out old files or saving the ROM to a different drive with more breathing room. 2. Verify the ROM File The randomizer needs a "clean" slate to work its magic.
If your "Documents" folder (where saves are often kept) is synced to OneDrive: Move that file to a different folder (to
Add your emulator’s folder to the "Exclusions" list in your Antivirus settings so it can operate freely without being blocked. 4. Move Your ROMs Out of System Folders
Fixing the "There Was an Unhandled Exception Trying to Save Your ROM to Disk" Error
: Some versions of the randomizer struggle with newer Java environments. Solution : If you are using Java 17 or higher, try installing Java 8 instead, as many randomizers were built specifically for that environment.
Many Windows-based emulators rely on the or Visual C++ Redistributables . If these libraries are outdated or corrupted, the software won't know how to "handle" the file-writing process, resulting in an unhandled exception. Check Disk Space and Drive Status Ensure that
Sometimes the issue lies within the tool itself. Unhandled exceptions can be caused by:
: This is the most frequent cause. Instead of overwriting your original ROM or a previous randomized version, try saving the file with a completely new name in a different folder.
If your save files are inside a OneDrive folder, synchronization can lock the file. Pause or close OneDrive/Dropbox. Attempt to save the game.
If you have the emulator installed in C:\Program Files , Windows security features may permanently block write access.
