STOP 0x000000C9
DRIVER_VERIFIER_IOMANAGER_VIOLATION
Driver Verifier caught a driver mishandling I/O requests. Like 0xC4: the tool did its job and the crash names the buggy driver.
Likely causes, most common first
- The verified driver has a real I/O-handling bug
How to fix it
1. Act on the verdict easy
- Update or remove the driver named in the report.
- Turn Verifier off afterwards: verifier /reset
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 | Subtype of the violation |
| Parameter 2 | Varies |
| Parameter 3 | Varies |
| Parameter 4 | Varies |
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