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Blue Screen (BSOD) – common error codes

DRIVER_IRQL_NOT_LESS_OR_EQUAL

Topic #147 · Updated · Pataisoma.lt

Troubleshooting guide

How to fix the problem

Often indicates a problem with the driver; save the minidump and analyze the mentioned .sys file if provided.

Possible solutions

Choose the method that matches your situation. Start with the simplest suitable option and check the result. If the problem is fixed, you do not need to continue with the other methods.

  1. Undoing the last driver

    Start with the driver or device replaced before the error.

    Steps to follow

    1. Right-click Start and select Device Manager. If Windows won't start, first go to safe mode according to the related topic.
    2. Expand the related device group: Display adapters for video error, Network adapters for network error. Do not modify the device without knowing it.
    3. Right-click the device, select Properties, then the Manager tab.
    4. Click "Return Driver". If the button is gray, there is no previous version - skip this method.
    5. Complete the wizard, save your work and reload. Repeat the action that caused the problem; do not change other drivers at the same time.
  2. Analysis of the error overlay

    If there is no replacement or the rollback does not help, analyze the minidump; The .sys name is only a hint.

    Steps to follow

    1. Save important files if your computer or drive is stable. If it makes unusual noises, smells like burning or the battery is swollen, stop testing.
    2. Write down the exact pattern of when the problem started and what action it took to reoccur. Take a picture of the visible error or deformation without opening the case.
    3. Submit a repair request with this information.

If the problem persists

Check the last driver or device change and try to undo it. The specified .sys file is a diagnostic hint; for professional dump analysis, submit the file privately, not in public comments.

Request a repair
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