UNEXPECTED_STORE_EXCEPTION 🪟 Windows

Blue screen: UNEXPECTED_STORE_EXCEPTION (0x00000154)

The memory/store manager hit an exception — commonly a failing SSD/HDD, outdated storage drivers, or antivirus.

Seen on: Windows

Meaning

Despite the name, it isn’t about the Microsoft Store. Disk health problems, Fast Startup, and third-party antivirus are most often involved.

Common causes

  • Failing or outdated SSD/HDD firmware
  • Storage driver issues
  • Fast Startup
  • Third-party antivirus

⚡ Quick fix

  1. Check disk health (SMART) and update SSD firmware
  2. Disable Fast Startup
  3. Remove third-party antivirus to test

Detailed fix by platform

Windows

  1. powershell
    Get-PhysicalDisk | Get-StorageReliabilityCounter | Select Temperature, Wear, ReadErrorsTotal
powercfg /h off

How to diagnose

  1. Disk — SMART/health status
  2. Startup — Fast Startup on?
  3. AV — Installed?

🔧 Still not fixed?

Many errors look alike. If the steps above didn’t solve it, one of these is probably what you’re facing:

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