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 The usual suspects are SSD/HDD sector corruption, outdated SSD firmware and antivirus software conflict.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. Use instructions for your exact device and software version. If Windows cannot start, see the startup guide.

Work through these checks

0 of 4 complete
01Run CHKDSK disk repair utility
  1. Run CHKDSK disk repair utility
What to expect

Check whether the original symptom still occurs.

If it does not help

Continue only if this check applies to your device. Consult its manufacturer if you are unsure.

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02Update SSD controller firmware
  1. Update SSD controller firmware
What to expect

Check whether the original symptom still occurs.

If it does not help

Continue only if this check applies to your device. Consult its manufacturer if you are unsure.

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03Run SFC and DISM tools
  1. Run SFC and DISM tools
What to expect

Check whether the original symptom still occurs.

If it does not help

Continue only if this check applies to your device. Consult its manufacturer if you are unsure.

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04Uninstall third-party antivirus
  1. Uninstall third-party antivirus
What to expect

Check whether the original symptom still occurs.

If it does not help

Continue only if this check applies to your device. Consult its manufacturer if you are unsure.

Browse related errors

Possible causes

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  • Outdated SSD firmware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