Below is detailed information on individual STOP errors for STOP code 0x1 through STOP code 0x5F, including what each STOP code means.
If you're looking for a STOP code outside of this range, please see my Complete List of STOP Codes from 0x1 to 0xC0000221.
If I have additional troubleshooting tips on a particular STOP error then I've provided a link to that information.
STOP Error 0x00000001: APC_INDEX_MISMATCH
STOP error 0x1 means that there has been a mismatch in the APC state index. STOP code 0x00000001 may also display "APC_INDEX_MISMATCH" on the same STOP message.STOP error 0x2 is not very common. STOP code 0x00000002 may also display "DEVICE_QUEUE_NOT_BUSY" on the same STOP message.
STOP error 0x3 is not very common. STOP code 0x00000003 may also display "INVALID_AFFINITY_SET" on the same STOP message.
STOP error 0x4 is not very common. STOP code 0x00000004 may also display "INVALID_DATA_ACCESS_TRAP" on the same STOP message.
STOP error 0x5 is not very common. STOP code 0x00000005 may also display "INVALID_PROCESS_ATTACH_ATTEMPT" on the same STOP message.
STOP error 0x6 is not very common. STOP code 0x00000006 may also display "INVALID_PROCESS_DETACH_ATTEMPT" on the same STOP message.
STOP error 0x7 is not very common. STOP code 0x00000007 may also display "INVALID_SOFTWARE_INTERRUPT" on the same STOP message.
STOP error 0x8 is not very common. STOP code 0x00000008 may also display "IRQL_NOT_DISPATCH_LEVEL" on the same STOP message.
STOP error 0x9 is not very common. STOP code 0x00000009 may also display "IRQL_NOT_GREATER_OR_EQUAL" on the same STOP message.
STOP Error 0x0000000A: IRQL_NOT_LESS_OR_EQUAL
STOP error 0xA means that Microsoft Windows or a kernel-mode driver accessed paged memory at DISPATCH_LEVEL or above. STOP code 0x0000000A may also display "IRQL_NOT_LESS_OR_EQUAL" on the same STOP message.