There Was An Unhandled Exception Trying To Save Your Rom To Disk ((top))
Add the folder containing your randomizer/emulator to the exclusion list. Summary Checklist for Quick Reference Potential Cause Right-click application →right arrow Run as administrator. System Folder Restrictions Move tools and ROMs to C:\RetroGaming\ . Locked Files Right-click ROM →right arrow Properties →right arrow Uncheck Read-Only. Compressed Formats Extract .zip or .7z files before patching. Antivirus Interference
How to Fix "There was an unhandled exception trying to save your ROM to disk"
Sometimes your computer literally won't let the software write the new file.
If your save folder is inside a synced folder (like OneDrive or Dropbox), the cloud service might be locking the file.
Keeping your ROM files, save states, or emulator folders inside system-managed directories triggers strict security protocols. Add the folder containing your randomizer/emulator to the
: Avoid deeply nested folders or folders containing special characters ( # , @ , ! , or non-English characters), as older emulation tools struggle to parse complex file paths.
) in the same folder as the program. Opening this can provide a specific technical traceback for developers if you need to report a bug on GitHub [Bug] Issue by 'Randomize (Save)' #771 - GitHub
(UPR) and indicates that the application encountered an unexpected problem while writing the modified file to your storage. Potential Causes File Overwriting Issues
Right-click the .exe > Properties > Compatibility tab > Check "Run this program as an administrator" > Apply. 2. Move the Emulator Out of "Program Files" If your save folder is inside a synced
Here is a comprehensive guide on why this happens and how to fix it so you never lose progress again. Common Causes of the Save Exception
Check the ROM's region (USA, Europe, Japan) against the tool’s documentation, as mismatching regions frequently trigger unhandled exceptions. Advanced Fixes
To help narrow down the exact solution for your setup, please tell me you are using, the specific console platform (e.g., GBA, NDS, SNES), and where the files are currently saved on your computer. Share public link
Windows Ransomware protection (Controlled Folder Access) often blocks emulators from saving. Open . Go to Virus & threat protection . Click Manage ransomware protection . Japan) against the tool’s documentation
: Using a ROM that has been pre-modified (a "ROM hack"), trimmed, or is from an unsupported region often triggers this exception.
Follow these methods in order to pinpoint and fix the underlying issue blocking your saves. 1. Run the Emulator as Administrator
Share your experience and the solution that worked for you in the comments below. Your fix might help someone else with the same cryptic exception.
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.