Step-by-Step Guide to Fix Error Code 0x000000D9

0x000000D9 Error: Driver Used Exessive PTES BSOD in Windows

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What is the 0x000000D9 Error?


The 0x000000D9 error occurs when a device driver consumes an excessive number of Page Table Entries (PTEs), which are critical memory structures used by Windows to manage virtual memory. When a faulty or poorly designed driver allocates memory incorrectly or fails to release PTEs, the system runs out of available PTE resources. To prevent severe memory corruption or system instability, Windows halts execution and triggers a Blue Screen of Death (BSOD) with the stop code DRIVER_USED_EXCESSIVE_PTES. This error is commonly associated with memory leaks in drivers, outdated kernel-level software, or conflicts involving storage, network, or graphics drivers.

Causes

  • Faulty or poorly written drivers leaking kernel memory
  • Outdated device drivers incompatible with the Windows version
  • Excessive memory usage by kernel-level software
  • Conflicts caused by antivirus, virtualization, or monitoring tools
  • Corrupted system files affecting memory management
  • Improper driver updates or failed Windows upgrades

Resolution Steps




1. Disable Driver Verifier (If Enabled)

  • Boot into Safe Mode.
  • Open Command Prompt (Administrator).
  • Run:verifier /reset
  • Restart the system.

2. Identify and Update Faulty Drivers

  • Open Device Manager.
  • Check for devices with warning icons.
  • Update drivers using official manufacturer sources only.
  • Pay special attention to network, storage, and graphics drivers.

3. Repair Corrupted System Files

  • Open Command Prompt (Administrator).
  • Run:sfc /scannow
  • After completion, run:DISM /Online /Cleanup-Image /RestoreHealth
  • Restart the system.

4. Uninstall Incompatible Third-Party Software

Boot into Safe Mode.

Uninstall recently installed kernel-level software such as:

  • Antivirus or endpoint protection tools
  • Virtualization software
  • System monitoring or performance tuning utilities

Restart normally and observe system behavior.

5. Increase Available PTEs (Advanced Users)

  • Open Registry Editor (regedit).
  • Navigate to:
  • HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management

Restart after making changes.

6. Check Disk and File System Integrity

  • Open Command Prompt (Administrator).
  • Run:chkdsk C: /f /r /x
  • Restart and allow the scan to complete.

7. Reset BIOS / UEFI Settings

  • Enter BIOS/UEFI during startup.
  • Load Optimized Defaults.
  • Disable CPU, GPU, and RAM overclocking.
  • Save changes and exit.

8. Perform a Clean Boot

  • Press Windows + R, type msconfig.
  • Hide all Microsoft services and disable remaining services.
  • Open Task Manager and disable all startup applications.
  • Restart and check system stability.

9. Install Latest Windows Updates and Firmware

  • Open Windows Update.
  • Install all available updates, including optional driver updates.
  • Update motherboard BIOS/UEFI firmware to the latest stable release.

10. Perform an In-Place Upgrade or Clean Install

  • Use the Windows Installation Media Tool.
  • Choose Upgrade this PC now to repair Windows without data loss.
  • If the BSOD persists, back up data and perform a clean installation.
  • The 0x000000D9 BSOD occurs when a driver exhausts available Page Table Entries, leading to critical memory management failures.

To resolve this error effectively:

  • Disable Driver Verifier if enabled
  • Identify and update faulty drivers
  • Repair system files using SFC and DISM
  • Remove conflicting kernel-level software
  • Reset BIOS/UEFI settings and keep Windows updated

If the issue continues, an in-place repair or clean installation provides a long-term solution. Maintaining updated drivers, supported software, and stable system configurations helps prevent the 0x000000D9 DRIVER_USED_EXCESSIVE_PTES error and ensures long-term Windows stability.


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