0x80004003SystemMedium

Error 0x80004003 — Invalid Pointer (E_POINTER) | Windows System Error Fix

Windows 11Windows 10Windows 8.1

What Does 0x80004003 Mean?

An invalid pointer was passed as a parameter to a COM method.

Real-World Causes

1Application bug passing null where a valid pointer is required
2Memory corruption affecting pointer values
3Incompatible DLL version returning unexpected null results
4COM interop marshaling failure between processes

Symptoms

⚠Application crashes with pointer error
⚠COM automation returns E_POINTER unexpectedly
⚠Scripting operations fail when passing objects between components
⚠Intermittent crashes in applications using COM

DIY Fix

Beginner-friendly steps you can try at home

1Update the application to the latest version
2Reinstall the application to replace corrupted files
3Run Windows Memory Diagnostic to check for RAM issues
4Restart the computer to clear temporary memory issues

Advanced Fix

For experienced users and IT professionals

1Use a debugger to identify which COM call is receiving the null pointer
2Check for DLL version mismatches using Dependency Walker

Frequently Asked Questions

Is this a sign of hardware failure?

Usually not. E_POINTER is almost always a software bug. However, if multiple unrelated applications show this error, faulty RAM could be corrupting pointer values. Run Windows Memory Diagnostic to test.

Related Error Codes

0x80004005Unspecified Error (E_FAIL)0x80004002No Such Interface (E_NOINTERFACE)

About the Author

Windows Troubleshooting Team

Verified against official Microsoft documentation and real-world diagnostic data. Error behavior confirmed across Windows 10, Windows 11, and Windows Server.