Microsoft Windows Error Code 0xC0000048: How to Fix It

Easy 30 minutes Medium Severity Verified June 2026
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Error Code
0xC0000048
Brand
Microsoft Windows
Product Type
operating_system
Severity
Medium
DIY Difficulty
Easy
Estimated Fix Time
30 minutes
Error code 0xC0000048, also known as STATUS_PORT_ALREADY_SET, indicates that a Local Procedure Call (LPC) port has already been assigned to a process. This usually happens due to a conflict between system services or corrupted system files. While the system may still function, you might experience hangs or crashes. Follow the steps below to resolve the issue.
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Tools You'll Need

How to Fix Error Code 0xC0000048

  1. Back Up Important Data

    Skipping backup may result in permanent data loss if further steps cause system instability.

  2. Run System File Checker (SFC)

  3. Run DISM Tool

    Internet connection may be needed for DISM to download repair files.

  4. Check for Conflicting Services

    Disabling Microsoft services may affect functionality; only disable third-party services.

  5. Update Windows and Drivers

  6. Perform System Restore

    System Restore will not affect personal files but may uninstall recently installed apps.
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When to Call a Professional

If none of the above steps resolve the error and the system becomes unbootable, consider contacting a professional technician. You may need advanced debugging tools or a clean Windows installation.

Frequently Asked Questions

What causes Windows error 0xC0000048?
Error 0xC0000048 is caused by a conflict where a Local Procedure Call (LPC) port is already set to a process. This often results from corrupted system files, driver issues, or software conflicts.
Can error 0xC0000048 damage my computer?
No, this error does not cause hardware damage. However, it may lead to system instability, crashes, or software not responding. Fixing it promptly is recommended to avoid data loss.
Do I need to reinstall Windows to fix error 0xC0000048?
Reinstalling Windows is a last resort. Most cases can be resolved with SFC, DISM, and updating drivers or performing a system restore.
Is error 0xC0000048 related to malware?
While malware can corrupt system files, error 0xC0000048 is not specifically malware-related. Run a full antivirus scan if you suspect infection.
How do I perform a system restore in Windows?
Type 'System Restore' in the Windows search bar, select 'Create a restore point', then click 'System Restore'. Follow the wizard to choose a restore point before the error occurred.

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