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

If another program (e.g., a cloud backup service, file sync tool like Dropbox, or even a second instance of the emulator) has the save file open, the emulator cannot overwrite it.

Follow these steps in order. The solution is usually one of the first three.

Certain emulators (especially development builds) may have bugs in their save handling code. A corrupted config file can also point the emulator to an invalid save directory. If another program (e

This error frequently occurs if you moved your ROMs from an old hard drive, a USB stick, or another user’s folder. Windows applies "inherited permissions" that may block write access.

Step-by-step:

Report ID: ERR-ROM-2026-04-18-01
Date of Occurrence: April 18, 2026
Reported By: System / User
Affected Component: Emulator / ROM Management Module
Severity: Medium – User data loss possible; operation interrupted

Modern games and save states can be large (anywhere from 1MB to 128MB per save). If your C: drive (or the drive where your ROMs live) has less than 200MB of free space, the emulator may fail mid-write. Modern games and save states can be large

PCSX2 is notorious for this error when using savestates across different versions of the emulator.

Solutions for PCSX2: