There Was An Unhandled Exception Trying To: Save Your Rom To Disk

"there was an unhandled exception trying to save your ROM to disk"

The error is a common issue with the Universal Pokemon Randomizer (UPR) , typically occurring when the software cannot write the randomized file due to file conflicts or system permissions . Common Causes and Fixes

2. Error Details

Always keep 10%+ free space on your emulation drive.
Store ROMs and saves in your user folder, never in Program Files or system roots.
Exclude your emulator folder from real-time antivirus scans (set folder exclusions).
Use a dedicated save folder backed up separately from ROMs.
Avoid running the emulator from a network drive or USB stick (unless it’s high-speed and stable).
Regularly update your emulator, but keep a known-stable version as backup.
Do not force-close the emulator during save operations.

Fix B: Taming Your Antivirus (Bitdefender, McAfee, Malwarebytes)

Check for "Trimmed" ROMs

: Using ROMs that have been "trimmed" to save space can cause saving to fail. Ensure you are using a clean, unmodified ROM . "there was an unhandled exception trying to save

"There was an unhandled exception trying to save your ROM to disk."

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. Always keep 10%+ free space on your emulation drive