Repair Windows Error 0x000000CA    |    Fix Error Code 0x000000CA    |    PNP_DETECTED_FATAL_ERROR


STOP Errors are usually the result of a hardware malfunction or device driver issue. It is also possible to receive a Blue Screen Error due to bad system memory, malfunctioning power supply, components overheating, or hardware overclocked beyond its specification. In older versions of the Windows OS you may also receive Blue Screen Errors due to incompatible DLL files.

Since the only option when receiving a Blue Screen Error is to reboot, any unsaved data is lost. With that in mind, it is very important to eliminate these errors to protect your data.

Basic Troubleshooting

Troubleshooting STOP Errors can be a difficult and time consuming process. Try these basic steps to fix your own Blue Scree Error. We hope it will help you avoid an expensive service call and provide a rewarding experience of solving the problem on your own.

Advanced Troubleshooting

The following details are for advanced users. These are provided for your convenience and may help those with advanced knowledge discover the root cause of their STOP Error.


The PNP_DETECTED_FATAL_ERROR stop error code has a value of 0x000000CA. This indicates that the Plug and Play Manager encountered a severe error, probably as a result of a problematic Plug and Play driver.


The following parameters are displayed on the blue screen. Parameter 1 identifies the type of violation.

Parameter 1Parameter 2Parameter 3Parameter 4Cause of Error
0x1Address of newly-reported PDOAddress of older PDO which has been duplicatedReservedDuplicate PDO: A specific instance of a driver has enumerated multiple PDOs with identical device ID and unique IDs.
0x2Address of purported PDOAddress of driver objectReservedInvalid PDO: An API which requires a PDO has been called with random memory, or with an FDO, or with a PDO which hasn't been initialized.

(An uninitialized PDO is one that has not been returned to Plug and Play by QueryDeviceRelation or QueryBusRelations.)

0x3Address of PDO whose IDs were queriedAddress of ID buffer1: DeviceID

2: UniqueID

3: HardwareIDs

4: CompatibleIDs

Invalid ID: An enumerator has returned an ID which contains illegal characters or isn't properly terminated. (IDs must contain only characters in the ranges 0x20 - 0x2B and 0x2D - 0x7F.)
0x4Address of PDO with DOE_DELETE_PENDING setReservedReservedInvalid enumeration of deleted PDO: An enumerator has returned a PDO which it had previously deleted using IoDeleteDevice.
0x5Address of PDOReservedReservedPDO freed while linked in devnode tree: The object manager reference count on a PDO dropped to zero while the devnode was still linked in the tree. (This usually indicates that the driver is not adding a reference when returning the PDO in a query IRP.)
0x8Address of PDO whose stack returned the invalid bus relationTotal number of PDOs returned as bus relationsThe index (zero-based) at which the first NULL PDO was found Null pointer returned as a bus relation: One or more of the devices present on the bus is a NULL PDO.
0x9Connection type that was passedReserved Reserved Invalid connection type passed to IoDisconnectInterruptEx: A driver has passed an invalid connection type to IoDisconnectInterruptEx. The connection type passed to this routine must match the one returned by a corresponding successful call to IoConnectInterruptEx.
0xADriver object IRQL after returning from driver callback Combined APC disable count after returning from driver callback Incorrect notify callback behavior: A driver failed to preserve IRQL or combined APC disable count across a Plug 'n' Play notification.
0xBRelated PDORemoval relationsReservedDeleted PDO reported as relation: One of the removal relations for the device being removed has already been deleted.

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Fix Windows Registry Errors    |    Fix Error Code 0x000000CA    |    STOP 0x000000CA