Blue screen: UNEXPECTED_STORE_EXCEPTION (0x00000154)
The memory/store manager hit an exception — commonly a failing SSD/HDD, outdated storage drivers, or antivirus.
Exact message you may see
Stop code: UNEXPECTED STORE EXCEPTION
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- Failing or outdated SSD/HDD firmware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
- Check disk health (SMART) and update SSD firmware
- Disable Fast Startup
- Remove third-party antivirus to test
Detailed fix by platform
Windows
- powershell
Get-PhysicalDisk | Get-StorageReliabilityCounter | Select Temperature, Wear, ReadErrorsTotal powercfg /h off
How to diagnose
- Disk — SMART/health status
- Startup — Fast Startup on?
- 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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Where this error sits
Origin: Platform & cloud. Errors that are often confused with or caused by this one (click to open):
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Last updated 12 Oct 2026