BAD_POOL_HEADER    |    Repair Windows Error 0x00000019    |    Fix Windows Registry Errors


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 BAD_POOL_HEADER stop error code has a value of 0x00000019. This indicates that a pool header is corrupt.


The following parameters are displayed on the blue screen. Parameter 1 indicates the type of violation. The meaning of the other parameters depends on the value of Parameter 1.

Parameter 1Parameter 2Parameter 3Parameter 4Cause of Error
0x2The pool entry being checkedThe size of the pool block0The special pool pattern check failed.

(The owner has likely corrupted the pool block.)

0x3The pool entry being checkedThe read-back flink freelist valueThe read-back blink freelist valueThe pool freelist is corrupt.

(In a healthy list, the values of Parameters 2, 3, and 4 should be identical.)

0x5One of the pool entriesReserved The other pool entryA pair of adjacent pool entries have headers that contradict each other. At least one of them is corrupt.
0x6One incorrectly-calculated entryReserved The bad entry that caused the miscalculationThe pool block header's previous size is too large.
0x70Reserved The bad pool entryThe pool block header size is corrupt.
0x80Reserved The bad pool entryThe pool block header size is zero.
0x9One incorrectly-calculated entryReserved The bad entry that caused the miscalculationThe pool block header size is corrupted (it is too large).
0xAThe pool entry that should have been found Reserved The virtual address of the page that should have contained the pool entryThe pool block header size is corrupt.
0x20The pool entry that should have been foundThe next pool entryReservedThe pool block header size is corrupt.


The pool is already corrupted at the time of the current request.

This may or may not be due to the caller.

Resolving the Problem

The internal pool links must be walked to figure out a possible cause of the problem.

Then you can use special pool for the suspect pool tags, or use Driver Verifier on the suspect driver. The !analyze debugger extension may be of help in pinpointing the suspect driver, but this is frequently not the case with pool corrupters.

Helpful Tools

The following products are free to try. We have found them to be of the highest quality and value. They have been extremely useful in our own pc troubleshooting and maintainance and we highly recommend trying them out for yourself.

Anti-Malware Pro

With a lightning fast free scan and the largest authentic spyware detection database we have seen, Anti-Malware Pro finds and removes threats to your PC stability and security. Download Anti-Malware Pro


DriverFinder will scan your system for driver and software updates. Its easy to use interface makes keeping your drivers updated quick and simple. They will even send you an email notification when new driver updates are available for your system! It doesn't get any more convenient than this. Download DriverFinder

Browse STOP Error Codes:

Is a STOP error code missing?

Help us to make the best resource we possibly can by submitting you very own STOP error code details. If you have detailed information on any STOP error code please let us know by visiting the following link.

Submit Error Details Form

BAD_POOL_HEADER    |    STOP 0x00000019    |    Fix Error Code 0x00000019