Sometimes, quite often actually 🙄, things get corrupted in RetroBat. I’m not knocking it, it’s an absolutelly fantastic emulation frontend and thinkering is just part of the retro games emulation experience. But, yeah, with thinkering. unfortunately things get broke. This includes the emulators themselves.

A quick and dirty way of performing a fresh install of an emulator in RetroBat is to simply delete the specific emulator folder. For example to remove Duckstation, navigate to RetroBat\emulators and then delete Duckstation. To reinstall it then simply open RetroBat enter RETROBAT emulator list and then reinstall.

Side Note:

Instead of Duckstation you can also use Swanstation in Retroarch.

A description of the two is below:

🦆 DuckStation

• Type: Standalone emulator
• Focus: High compatibility, speed, and long-term maintainability
• Platform: Available on Windows, Linux, Android, and macOS
• Features:
  • Modern UI
  • Save states, widescreen hacks, texture filtering
  • Supports achievements (RetroAchievements)
• Development: Actively maintained by its original developer
• Best For: Users who want a full-featured, standalone PS1 emulator with a modern interface

🦢 SwanStation

• Type: Libretro core (used within RetroArch)
• Origin: Fork of DuckStation, created due to licensing and distribution disagreements
• Focus: Same as DuckStation—playability and performance—but within the RetroArch ecosystem
• Features:
  • Nearly identical emulation to DuckStation
  • Integrated into RetroArch’s unified interface
• Limitations:
  • May lag behind DuckStation in updates
  • Slightly less customizable outside of RetroArch
• Best For: Users who prefer RetroArch’s all-in-one emulator interface