STOP 0x000000AB    |    Fix Error Code 0x000000AB    |    SESSION_HAS_VALID_POOL_ON_EXIT


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 SESSION_HAS_VALID_POOL_ON_EXIT stop error code has a value of 0x000000AB. This stop error code indicates that a session unload occurred while a session driver still held memory.


The following parameters appear on the blue screen.

1The session ID.
2The number of paged pool bytes that are leaking.
3The number of nonpaged pool bytes that are leaking.
4The total number of paged and nonpaged allocations that are leaking. (The number of nonpaged allocations are in the upper half of this word, and paged allocations are in the lower half of this word.)


The SESSION_HAS_VALID_POOL_ON_EXIT stop error code occurs because a session driver does not free its pool allocations before a session unload. This stop error code indicates a bug in Win32k.sys, Atmfd.dll, Rdpdd.dll, or a video driver.

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Fix Error Code 0x000000AB    |    Repair Windows Error 0x000000AB    |    SESSION_HAS_VALID_POOL_ON_EXIT