There Was An Unhandled Exception Trying To Save Your Rom To Disk Jun 2026

Windows restricts standard applications from writing files to primary system drives to prevent malware. Giving the program administrative privileges usually bypasses this constraint.

The quickest way to bypass Windows permission restrictions is to grant the emulator elevated privileges. Close your emulator completely. Right-click the emulator’s executable file ( .exe ). Select . Test the save function in your game. If this fixes the issue, make the change permanent: Right-click the .exe file and select Properties . Navigate to the Compatibility tab. Check the box for Run this program as an administrator . Click Apply and OK . 2. Move the Emulator Out of Protected Folders

Ensure there is at least 100MB of free space.

Click . If a prompt appears, choose "Apply changes to this folder, subfolders, and files." Click OK . Pro-Tips for ROM Management Close your emulator completely

The operation did not complete successfully. No permanent system damage occurred, but the ROM was not saved, potentially resulting in loss of user changes or progress.

can require up to 6 GB of free space during the randomization process. : Ensure your drive has ample free space. "Trimmed" or Modified ROMs

If you're on Windows, try running the randomizer "As Administrator" to bypass folder permission restrictions. Test the save function in your game

catch (Exception ex) when (ex is IOException or UnauthorizedAccessException)

Go to > Manage ransomware protection .

Create a new folder directly on your main drive (e.g., C:\Games\Emulators\ ) or use a secondary drive ( D:\ ). Move your entire emulator directory into this new location. 3. Check for Read-Only Attributes permissions might break.

An "unhandled exception" occurs when the emulator tries to perform this writing operation but hits a wall it cannot climb. Because the software does not have a specific routine to handle the specific problem (e.g., "the folder is write-protected" or "the disk is full"), it crashes and throws a generic exception error to protect your system.

If you moved your emulator from Downloads to Applications, permissions might break. Fix:

If you try to save the randomized ROM directly into a protected folder (like Program Files ), the computer will block the save action.