The BAD_POOL_CALLER error is a Blue Screen of Death (BSOD) that occurs when a program or driver makes an invalid request to the Windows memory pool.
When this error appears, your system crashes and shows:
“Your PC ran into a problem and needs to restart.”
Stop Code: BAD_POOL_CALLER
This issue usually indicates memory corruption, driver conflicts, or faulty hardware.
The error commonly occurs on systems running:
- Windows 10
- Windows 11
In this guide, you’ll learn what causes BAD_POOL_CALLER and how to fix it step by step.
What Causes BAD_POOL_CALLER?
This error occurs when Windows detects invalid memory pool usage.
Common causes include:
- Corrupted or outdated device drivers
- Faulty RAM
- Antivirus conflicts
- Disk errors
- Damaged Windows system files
- Driver conflicts after updates
Because the issue is related to memory management, troubleshooting often focuses on RAM and drivers.
Method 1: Restart Your Computer
Temporary system conflicts may trigger the error.
Restart your PC and check if the issue occurs again.
If the crash persists, continue with the solutions below.
Method 2: Update Device Drivers
Outdated drivers are one of the most common causes.
Steps:
- Right-click Start Menu
- Select Device Manager
- Expand device categories
- Right-click a device
- Click Update driver
Important drivers include:
- Graphics drivers
- Network drivers
- Storage drivers
Updating drivers helps prevent memory-related conflicts.
Method 3: Run Windows Memory Diagnostic
Faulty RAM is a frequent cause of this error.
Use the built-in memory testing tool:
- Windows Memory Diagnostic
Steps:
- Press Windows + R
- Type:
mdsched.exe
- Select Restart now and check for problems
Windows will scan your memory for errors.
Method 4: Run System File Checker
Corrupted system files may trigger BAD_POOL_CALLER.
Use the built-in repair tool:
- System File Checker
Steps:
- Open Command Prompt as Administrator
- Run:
sfc /scannow
This scan repairs damaged Windows system files.
Method 5: Repair Windows Image Using DISM
If SFC cannot fix all issues, use:
- Deployment Image Servicing and Management
Run:
DISM /Online /Cleanup-Image /RestoreHealth
This tool repairs deeper system corruption.
Method 6: Check Disk for Errors
Disk problems may also cause memory-related crashes.
Run:
chkdsk /f /r
This command scans your drive and fixes file system errors.
Method 7: Disable or Uninstall Antivirus Software
Some third-party antivirus programs may conflict with Windows memory operations.
Try temporarily disabling or uninstalling them to see if the issue is resolved.
Method 8: Install the Latest Windows Updates
Updates often include bug fixes and driver improvements.
Steps:
- Open Settings
- Click Windows Update
- Install available updates
Related Windows Error Fix Guides
You may also encounter other Windows crash errors. These guides may help:
• How to Fix THREAD_STUCK_IN_DEVICE_DRIVER
• How to Fix ATTEMPTED_WRITE_TO_READONLY_MEMORY
• How to Fix CLOCK_WATCHDOG_TIMEOUT
These are among the most common crashes in Microsoft Windows systems.
Frequently Asked Questions
What does BAD_POOL_CALLER mean?
It means a driver or system process made an invalid request to the memory pool.
Can faulty RAM cause this error?
Yes. Defective RAM is one of the most common causes.
Is this error related to drivers?
Yes. Corrupted or incompatible drivers often trigger this blue screen.
Final Thoughts
The BAD_POOL_CALLER blue screen is usually caused by memory issues, driver conflicts, or system corruption.
Most users can fix the issue by:
- Updating device drivers
- Testing RAM using Windows Memory Diagnostic
- Repairing system files using SFC
- Repairing Windows image using DISM
- Checking disk errors
- Removing conflicting antivirus software
After applying these fixes, your computer should run normally without unexpected crashes.