Microsoft Windows Error Code 0x000000B8: How to Fix It

Medium 1-3 hours High Severity Verified June 2026
Error Code
0x000000B8
Brand
Microsoft Windows
Product Type
operating_system
Severity
High
DIY Difficulty
Medium
Estimated Fix Time
1-3 hours
Windows error code 0x000000B8 (ATTEMPTED_SWITCH_FROM_DPC) is a Blue Screen of Death that occurs when a driver or system component tries to perform an illegal operation while running in Deferred Procedure Call context. This typically indicates faulty drivers, hardware conflicts, or corrupted system files that need immediate attention.
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Tools You'll Need

How to Fix Error Code 0x000000B8

  1. Boot into Safe Mode

    Save any important work before restarting as you may lose unsaved data
  2. Check Recent Hardware or Software Changes

    Always power off and unplug your computer before removing any internal hardware components
  3. Update or Roll Back Drivers

  4. Run System File Checker

    Do not interrupt the SFC scan process as it could cause additional system corruption
  5. Check for Windows Updates

  6. Test System Memory

    Memory testing will require a restart and may take 15-20 minutes to complete
  7. Perform System Restore

    System Restore will uninstall recently installed programs and drivers
  8. Check Event Viewer for Specific Causes

Parts You May Need

Computer RAM memory modules
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Computer hard drive or SSD
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Computer RAM memory modules
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Computer hard drive or SSD
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Computer RAM memory modules
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Computer hard drive or SSD
Check Price on Amazon
Computer RAM memory modules
Check Price on Amazon
Computer hard drive or SSD
Check Price on Amazon
Computer RAM memory modules
Check Price on Amazon
Computer hard drive or SSD
Check Price on Amazon
Computer RAM memory modules
Check Price on Amazon
Computer hard drive or SSD
Check Price on Amazon
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When to Call a Professional

Contact a computer technician if the error persists after trying all steps, if you're uncomfortable working in Safe Mode, if hardware testing reveals memory or hard drive failures, or if the computer won't boot into Safe Mode at all. Professional help is also needed if you suspect motherboard or CPU issues.

Frequently Asked Questions

What does ATTEMPTED_SWITCH_FROM_DPC mean?
ATTEMPTED_SWITCH_FROM_DPC means a driver tried to perform an operation that's not allowed while running in Deferred Procedure Call context. This usually indicates a programming error in a device driver or system component.
Can error 0x000000B8 cause data loss?
The blue screen itself typically doesn't cause data loss, but frequent crashes can lead to file corruption. Always backup important data regularly and save work frequently to minimize potential losses.
Is this error related to hardware problems?
Error 0x000000B8 is usually software-related (faulty drivers), but can sometimes indicate hardware issues like failing RAM, overheating components, or incompatible hardware installations.
How can I prevent this error from happening again?
Keep drivers updated, install Windows updates regularly, avoid installing questionable software, use reputable antivirus protection, and ensure proper computer ventilation to prevent overheating.
Will reinstalling Windows fix error 0x000000B8?
Reinstalling Windows can fix the error if it's caused by corrupted system files or problematic drivers, but try other solutions first as reinstallation requires backing up data and reinstalling all programs.