Repair Windows Error 0x00000041    |    Fix Error Code 0x00000041    |    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 MUST_SUCCEED_POOL_EMPTY stop error code has a value of 0x00000041. This indicates that a kernel-mode thread has requested too much must-succeed pool.


The following parameters are displayed on the blue screen.

1The size of the request that could not be satisfied
2The number of pages used from nonpaged pool
3The number of requests from nonpaged pool larger than PAGE_SIZE
4The number of pages available


In Microsoft Windows 2000, only a small amount of must-succeed pool is permitted. In Windows XP and later, no driver is permitted to request must-succeed pool.

If a must-succeed request cannot be filled, this stop error code is issued.

Resolving the Problem

Replace or rewrite the driver which is making the request. A driver should not request must-succeed pool. Instead, it should ask for normal pool and gracefully handle the scenario where the pool is temporarily empty.

The kb (Display Stack Backtrace) debugger command will show the driver that caused the error.

Additionally, it is possible that a second component has depleted the must-succeed pool. To determine if this is the case, first use the kb command. Then use the !vm 1 debugger extension to display total pool usage, !poolused 2 to display per-tag nonpaged pool usage, and !poolused 4 to display per-tag paged pool usage. The component associated with the tag using the most pool is probably the source of the problem.

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

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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

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Repair Windows Error 0x00000041    |    Fix Windows Registry Errors    |    MUST_SUCCEED_POOL_EMPTY