Windows & BSOD · critical

How to fixPFN_LIST_CORRUPT

0x0000004E PFN List Corrupt

What this error means

PFN_LIST_CORRUPT shows up as a critical-severity Windows operating system fault. The PFN (Page Frame Number) data structure is corrupted. The system detected an inconsistency in memory. Common triggers are registry corruption, faulty RAM and bad hard disk driver. 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 MemTest86

Run MemTest86.

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

I need help
02Run the disk error repair tool

Run the disk error repair tool.

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

I need help
03Uninstall suspect drivers

Uninstall suspect drivers.

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

I need help

Possible causes

  • Registry corruption
  • Faulty RAM
  • Bad hard disk driver