Irql not less or equal driver




















Breaking that cryptic message down, the error stems from a communication issue between your hardware and your processor. When your hardware wants to tell the CPU that something is about to happen, it makes an interrupt.

If too many bits of hardware attempt to communicate simultaneously, or rather, there is faulty configuration somewhere, the interrupt request level IRQL rises. In this case, a piece of hardware is attempting to access a part of your system memory that it does not have access to because the CPU is processing other things. If the driver attempts to access a memory address it doesn't have proper access to, it can cause your system to crash. One of the most common drivers involved with the 0xD1 error is your network driver, specifically the system file ndis.

It seems obvious, but you should check for any outstanding updates. There could be a bug fix in an upcoming update relating to your faulty driver, and installing the update might make everything okay.

If there is an update, save any important files, then press Restart now. Your system will reboot during the process. Windows 10 takes care of your driver updates, but that doesn't mean the occasional driver doesn't slip the net. It also doesn't stop driver corruption, where the driver becomes buggy or corrupt over time.

Driver faults are less common on Windows 10 than with older versions of Windows, but they absolutely still happen. Typically, when this error occurs, a driver has tried to access an address that is pageable or that is completely invalid while the interrupt request level IRQL was too high.

This can be caused by:. You can use dx display debugger object model expression , a debugger command, to display this: dx KiBugCheckDriver. The function was marked as pageable and was running at an elevated IRQL which includes obtaining a lock. If the problem is caused by the driver that you are developing, make sure that the function that was executing at the time of the bug check is 1 not marked as pageable or 2 does not call any other inline functions that could be paged out.

The following example is output from! If a trap frame is available in the dump file, use the. To start debugging this type of bug check, examine the stack trace by using the k , kb , kc , kd , kp , kP , kv display stack backtrace commands. In the debugger, run the!

For example:. In the majority of cases of this type of bug check, the issue is not the IRQL level, but rather the memory that is being accessed. Because this bug check is usually caused by drivers that have used improper memory addresses, use parameters 1, 3, and 4 to investigate further.

Before working as a technical writer for Driver Easy, she was a technical support agent, helping people to solve their computer problems. She enjoys providing solutions to computer problems and loves exploring new technologies. To install Driver Easy Click. Camilla Mo Last Updated: 3 years ago. Leonie Wang. Vivienne Duan. Once you are content with the recovery, click on the files individually and hit the "Recover" tab.

You will be able to store the recovered to whatever folder or device you want. We have mentioned every possible solution in this article, which is extremely simple to perform and cost no money whatsoever.

However, it is necessary to maintain the health of your computer and its hardware, which includes wiping the dust off them more frequently. Generally rated 4. Our guide will help you figure out the error in no time. Download Win Download Mac. David Darlington. My computer is regularly showing a blue screen whenever I try to work on it.

What is the method to fix the error that is causing extreme disruption to my daily activities? Part 2: Fixed!



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