Quick answer: PS4 error CE-41893-5 can appear when a USB drive that is formatted as extended storage is being used as though it were a normal FAT32 or exFAT USB drive. A PS4 extended-storage drive is reserved for installed games and applications. Safely stop using it before disconnecting it, then either keep it as extended storage or erase and reformat it for ordinary USB files. The least disruptive solution is to use a second USB drive.
Before you start
- Do not unplug the drive while the PS4 is running or its access light is active.
- Formatting erases the entire drive. Move any installed games you want to keep back to system storage or plan to download them again.
- Saved games are not stored on PS4 extended storage, but confirm your saves and captures are backed up before erasing any device.
Fix CE-41893-5
- Confirm the drive’s current role. Open Settings > Devices > USB Storage Devices. If the drive is identified as extended storage, the PS4 is using it for applications rather than ordinary files.
- Close running games and apps. Wait for downloads, updates and transfers to finish.
- Stop the drive safely. Select the drive and choose Stop Using This Extended Storage. You can also use the Quick Menu storage option if it is available.
- Choose one purpose. To keep installed games on the drive, reconnect it as extended storage and use a separate FAT32/exFAT USB drive for screenshots, video clips or exported saves. To repurpose it, first move or remove its games, then format it as exFAT or FAT32. Formatting erases everything on the drive.
- Reconnect and retry. Fully shut down the PS4, reconnect only the device needed for the task, restart and repeat the copy or export.
- Update system software. If the same error appears with a correctly formatted second drive, install the current PS4 system-software update and test another USB port or known-good drive.
Why this works
Extended storage and ordinary USB storage use different formats and permissions. The console cannot treat the same volume as both an application-install drive and a generic file-transfer drive at the same time. Separating those roles removes the conflict without changing account or network settings.
Alternatives
- Move games between system storage and extended storage instead of reformatting the drive.
- Use a small, separate exFAT USB drive for captures and save exports.
- If the drive disconnects repeatedly, test its cable and power supply before replacing it.
Warnings
Do not select Format as Extended Storage or reformat the drive on a computer unless you accept complete data loss on that device. Never unplug extended storage without stopping it first. To undo a repurpose, the PS4 can format the drive as extended storage again, but doing so erases its ordinary files.
FAQ
Can one USB drive store PS4 games and ordinary files?
Not while it is configured as PS4 extended storage. Use separate devices or reformat the drive for a single purpose.
Will stopping extended storage delete games?
No. Stopping it safely only dismounts the drive. Formatting it is the step that erases data.
Which normal USB formats does PS4 support?
PlayStation documentation uses FAT32 and exFAT for ordinary USB storage tasks.
Official references
Source video
The Moe Gaming video below is source material. Current first-party instructions and the warnings in this guide take priority.
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