PFN_LIST_CORRUPT
What is this error?
The Page Frame Number (PFN) list is corrupted. This indicates a serious memory management error, often caused by faulty drivers or bad RAM.
Common causes
- faulty driver corrupting memory structures
- defective RAM
- overclocking instability
- antivirus kernel driver conflict
- Windows system file corruption
How to fix it
- Check minidump for faulting driver
- run memtest86
- update drivers
- uninstall antivirus temporarily
Too many steps? Crashless can diagnose this automatically — checks your drivers, temps, VRAM, and 400+ known error patterns.
Get free AI diagnosis Detailed analysis
Bug check 0x0000004E (PFN_LIST_CORRUPT) means Windows' page frame number database — which tracks physical memory pages — is corrupted. This is a critical memory management failure.
How to fix it:
- Check the minidump (C:\Windows\Minidump) for the faulting driver — a specific driver often corrupts PFN structures
- Run memtest86 overnight — defective RAM is a primary cause of PFN corruption
- Update ALL drivers, especially GPU, network, and storage drivers
- Temporarily uninstall antivirus — Norton, McAfee, and Bitdefender kernel drivers are common culprits
- Disable overclocking (CPU, RAM XMP/EXPO)
- Run 'sfc /scannow' followed by 'DISM /Online /Cleanup-Image /RestoreHealth'
- Test each RAM stick individually to isolate a faulty module
- If the minidump shows ntoskrnl.exe as the faulting module, it's likely a secondary effect of a driver or hardware issue — check surrounding events in Event Viewer
When to seek help
If this error keeps happening after trying the fixes above, it may point to a deeper hardware or system issue. Consider professional help if:
- The crash occurs across multiple games or applications
- You see the same error after a clean Windows install
- Your PC is less than a year old (could be a warranty issue)
- You smell burning or hear unusual sounds from your PC
Or let Crashless do the deep analysis for you -- our AI checks drivers, temps, event logs, and 400+ known patterns automatically.
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