Microsoft Windows Error Code 0xC0000203: How to Fix It

Medium 30-60 minutes Medium Severity Verified June 2026
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Error Code
0xC0000203
Brand
Microsoft Windows
Product Type
operating_system
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
30-60 minutes
Error code 0xC0000203 (STATUS_USER_SESSION_DELETED) in Windows indicates that the user session was unexpectedly terminated, often due to system file corruption, driver conflicts, or user profile issues. This error can prevent you from logging in normally and may lead to data loss if not addressed. Follow the steps below to diagnose and resolve the issue.
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Tools You'll Need

How to Fix Error Code 0xC0000203

  1. Boot into Safe Mode

    If you cannot boot normally, use a Windows installation media to access Recovery Environment.

  2. Run System File Checker (SFC)

  3. Run DISM Tool

  4. Check for User Profile Corruption

    Editing the registry incorrectly can cause system instability. Back up the registry first.

  5. Update or Roll Back Drivers

  6. Perform a System Restore

    System Restore may affect recently installed programs. Save any open files.

  7. Reset Windows (Last Resort)

    This will remove installed apps but keep personal files. Back up important data first.
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When to Call a Professional

If none of the above steps work and you cannot access Safe Mode or Recovery Environment, you may have severe system corruption or failing hardware. Consider contacting a professional technician or using Windows Recovery Services.

Frequently Asked Questions

What causes error 0xC0000203 in Windows?
This error is typically caused by corrupted system files, damaged user profile, faulty device drivers, or recent system changes that disrupt the user session.
Can error 0xC0000203 cause data loss?
Although the error itself may not directly delete files, it can prevent you from accessing your user profile, potentially leading to data loss if you reset or reinstall Windows without backing up.
How do I fix error 0xC0000203 without reinstalling Windows?
Try booting into Safe Mode, running SFC and DISM, repairing the user profile via registry, updating drivers, or performing a System Restore. These methods often resolve the issue without a full reinstall.
Is error 0xC0000203 the same as 0xC0000203A?
The codes are similar but not identical. 0xC0000203A may indicate additional flags. Most troubleshooting steps overlap, but check specific code references.
Can a virus cause error 0xC0000203?
Yes, malware can corrupt system files or user profiles, leading to this error. Running a full antivirus scan in Safe Mode is recommended.

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