Microsoft Windows Error Code 0xC0000005: How to Fix It

Medium 30-90 minutes High Severity Verified June 2026
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Error Code
0xC0000005
Brand
Microsoft Windows
Product Type
operating_system
Severity
High
DIY Difficulty
Medium
Estimated Fix Time
30-90 minutes
Error code 0xC0000005, also known as STATUS_ACCESS_VIOLATION, means a program tried to access a memory address it wasn't allowed to. This typically occurs due to faulty software, corrupted system files, bad drivers, or hardware issues like failing RAM. The following steps will help you diagnose and resolve the problem.
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Tools You'll Need

How to Fix Error Code 0xC0000005

  1. Restart Your Computer

  2. Run a System File Checker Scan

    Do not close the Command Prompt window until the scan finishes.

  3. Check for Windows Updates

    Ensure you have a stable internet connection.

  4. Run Memory Diagnostics

    Back up important data before running memory diagnostics, as the test requires a restart.

  5. Update or Reinstall Problematic Drivers

    Be cautious when updating drivers; only download from official sources.

  6. Perform a Clean Boot

    After troubleshooting, re-enable services and startup items to restore normal functionality.

  7. Run a Virus Scan

  8. Check for Hardware Issues

    Working inside a computer? Ensure it's unplugged and grounded to avoid static discharge.
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When to Call a Professional

If you've tried all steps (including MemTest86 and hardware reseating) and the error persists, consider consulting a professional technician. Hardware failures like bad RAM or a failing motherboard often require replacement. Data recovery may also be needed if the error causes crashes or data loss.

Frequently Asked Questions

What causes error 0xC0000005 in Windows?
Error 0xC0000005 is typically caused by software or driver conflicts, corrupted system files, faulty RAM, or malware. It means a program tried to access memory that it wasn't allowed to.
Can error 0xC0000005 be caused by a virus?
Yes, malware can corrupt system files or interfere with memory management, leading to this error. Running a full antivirus scan is recommended.
How do I fix error 0xC0000005 in Windows 10/11?
Common fixes include running an SFC scan, updating Windows, running memory diagnostics, performing a clean boot, updating drivers, and checking for malware. The steps above cover all these methods.
Is error 0xC0000005 a hardware or software issue?
It can be either. Software causes (corrupted files, drivers, malware) are more common, but faulty RAM or hard drive issues can also trigger it. Start with software fixes before testing hardware.
Will a clean install fix error 0xC0000005?
A clean install of Windows can resolve persistent software-related causes, but if the error is due to faulty hardware, it may reappear after reinstalling. Try other fixes first before resorting to a clean install.

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