There Was An Unhandled Exception Trying To Save Your Rom To Disk 99%

How to Fix "There Was an Unhandled Exception Trying to Save Your ROM to Disk"

Sometimes, Windows Defender or third-party antivirus (like Avast or Bitdefender) sees the act of a program modifying a file as "ransomware-like behavior" and kills the process. How to Fix "There Was an Unhandled Exception

Part 1: Understanding the Error

What Does "Unhandled Exception" Mean?

In software development, an "exception" is an unexpected event that disrupts the normal flow of a program. An unhandled exception means the emulator encountered a problem it didn’t know how to recover from—so it stopped what it was doing and showed you an error. Check your Dolphin Emulator folder in Documents

Permissions: The emulator doesn't have the "authority" to write files to the folder it’s sitting in. or Downloads folders.

System Environment: Outdated Java versions or missing .NET Framework components can prevent the randomizer from executing the save command correctly. Recommended Troubleshooting Steps [Bug] Unhandled Exception error · Issue #809 - GitHub

6. Fix "Special Characters" in Paths If your Windows username or the game folder contains special characters (accent marks, symbols), emulators often crash when trying to resolve the file path.

3. Disable Windows Controlled Folder Access

Windows Defender’s Controlled Folder Access (introduced in Windows 10) can block emulators from writing to your Documents, Pictures, or Downloads folders.