Either turn it off entirely or click and add Dolphin.exe .
Go to .
Sometimes the emulator simply lacks the necessary permissions to write to its own folder. Right-click your Dolphin.exe file. dolphin ios-fs failed to write new fst
If OneDrive or folder permissions continue to cause issues, you can move the user data folder out of "Documents". Either turn it off entirely or click and add Dolphin
The "FST" refers to the , which Dolphin uses to track metadata and access control lists for content stored on the virtual Wii NAND. When Dolphin cannot write this file, it fails to update your virtual console’s internal memory, leading to lost saves or persistent error popups. Common Causes dolphin ios-fs failed to write new fst