Windows & BSOD · critical

How to fix0x00000154

UNEXPECTED_STORE_EXCEPTION

What this error means

UNEXPECTED_STORE_EXCEPTION is a critical-severity Windows operating system issue. The store component has thrown an unexpected exception. Caused by hard drive failure, SSD controller timeout, or corrupted system files. The usual suspects are SSD/HDD sector corruption, outdated SSD firmware and antivirus software conflict. Work through the steps below in order.

Before you begin

Save open work and back up important files. Note any recent driver or hardware changes. If Windows cannot start, use the startup guide first.

Work through these checks

0 of 4 complete
01Run CHKDSK disk repair utility

Run CHKDSK disk repair utility.

Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.

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02Update SSD controller firmware

Update SSD controller firmware.

Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.

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03Run SFC and DISM tools

Run SFC and DISM tools.

Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.

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04Uninstall third-party antivirus

Uninstall third-party antivirus.

Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.

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Possible causes

  • SSD/HDD sector corruption
  • Outdated SSD firmware
  • System file corruption
  • Antivirus software conflict