Windows & BSOD · critical

How to fix0x0000000A

IRQL_NOT_LESS_OR_EQUAL

What this error means

This critical-severity issue affects the Windows operating system. A kernel process attempted to access memory at an unauthorized high interrupt level (IRQL). Typical causes include badly programmed driver and processor overheating. Follow the steps below to fix it.

Before you begin

Save open work and back up important files. Note any recent driver or hardware changes. If Windows cannot start, use the startup guide first.

Work through these checks

0 of 3 complete
01Run memory diagnostics (mdsched)

Run memory diagnostics (mdsched).

Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.

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02Update all drivers

Update all drivers.

Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.

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03Verify your memory with MemTest86

Verify your memory with MemTest86.

Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.

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Possible causes

  • Defective RAM memory
  • Badly programmed driver
  • Processor overheating

Useful Windows tools

These commands open Windows tools. Review any action inside the tool before applying changes.

mdsched.exe