P
PC FIX
blue screen

Invalid memory access in DRIVER_IRQL_NOT_LESS_OR_EQUAL driver

error meaning

The driver accessed invalid memory at a high IRQL.

Frequently Occurring Situations

Interruptions occur while using the wireless LAN, VPN, or graphics device.

First thing to check

Check the driver name displayed in the error and the connected device.

main causes

  • device driver bug
  • VPN filter conflict
  • memory corruption

Step-by-step solution

If it is checked and resolved from above, you do not need to proceed to the next step.

1. Check occurrence conditions

Interruptions occur while using the wireless LAN, VPN, or graphics device.

Difficulty Easy · Estimated time 5 minutes

  1. Check the driver name displayed in the error and the connected device.

Check points: Record the error code, when it occurred, and any recent changes.

2. Procedure for resolving incorrect memory access in driver

The driver accessed invalid memory at a high IRQL.

Difficulty Moderate · Estimated time 10~30 minutes

  1. Change the device's driver to the manufacturer's stable version.
  2. If you recently added a VPN or secure network filter, test it against the vendor's removal procedure.

Check points: Check if the same driver name appears again while using the problem device.

Frequently Asked Questions

Related PC FIX Issues

Windows blue screen keeps happening

Among Windows problems, “blue screen” symptoms may be related to driver or hardware errors, or memory/storage problems. Record the stop code and when it occurred, then narrow down the cause by recent changes, RAM/storage, and system files.

The computer turns on but does not boot into Windows.

Among boot problems, the “powers on but does not boot” symptom may be related to boot file corruption or storage device issues. Distinguish between the POST stage and the Windows startup stage, then check in that order: external device, boot settings, and recovery environment.

official reference document

Content review date: 2026-10-07

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