STOP 0x00000023
FAT_FILE_SYSTEM
The FAT file-system driver hit a fatal error — corruption on a FAT-formatted drive (often a USB stick or SD card), or a failing disk.
Likely causes, most common first
- Corruption on a FAT/exFAT volume
- A failing USB stick, SD card or drive
- A buggy filter driver (antivirus) touching the volume
How to fix it
1. Check the volume easy
- Unplug recently added USB sticks/SD cards and see if the crashes stop.
- Run chkdsk /f against the suspect drive letter from an admin terminal.
The four parameters on the blue screen
Windows shows four hex numbers with this stop code. Here's what each means — our analyzer decodes them automatically from your dump file.
| Parameter 1 | Source-file and line information |
| Parameter 2 | Varies |
| Parameter 3 | Varies |
| Parameter 4 | Varies |
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