UNEXPECTED_STORE_EXCEPTION (0x00000154): Windows Blue Screen Fix

Quick answer

The Windows stop code UNEXPECTED_STORE_EXCEPTION (0x00000154) means: The memory store component hit an unexpected error, often linked to the disk or security software. If it happened once, restart and keep an eye on it. If the blue screen repeats, follow the steps below; it is usually fixed by updating or removing a driver or program.

Before you start: note the stop code shown on the blue screen. If Windows will not start normally, it usually opens Automatic Repair after two failed starts; from there choose Advanced options to reach Safe Mode or System Restore.

Is it serious? Can I keep using my PC?

Severity: Medium

If it happened once, restart and keep an eye on it. If the blue screen repeats, follow the steps below; it is usually fixed by updating or removing a driver or program.

Common causes

Failing or corrupted disk or SSD
Conflict with antivirus, VPN or system utility software
Outdated BIOS/UEFI or SSD firmware

How to fix it

Restart the PC. If the blue screen happened only once and does not return, no further action is usually needed
Check the disk with "chkdsk C: /f" and check the drive's health
Update the BIOS/UEFI and SSD firmware from the manufacturer
Uninstall recently installed programs, especially antivirus, VPN or system tools
Run "sfc /scannow" and "DISM /Online /Cleanup-Image /RestoreHealth" as administrator
Turn off Fast Startup and update chipset and power management drivers

Frequently asked questions

What does UNEXPECTED_STORE_EXCEPTION mean?

The Windows stop code UNEXPECTED_STORE_EXCEPTION (0x00000154) means: The memory store component hit an unexpected error, often linked to the disk or security software.

Is UNEXPECTED_STORE_EXCEPTION serious?

Severity: Medium. If it happened once, restart and keep an eye on it. If the blue screen repeats, follow the steps below; it is usually fixed by updating or removing a driver or program.

How do I fix UNEXPECTED_STORE_EXCEPTION?

Start with these steps: Restart the PC. If the blue screen happened only once and does not return, no further action is usually needed; Check the disk with "chkdsk C: /f" and check the drive's health; Update the BIOS/UEFI and SSD firmware from the manufacturer; Uninstall recently installed programs, especially antivirus, VPN or system tools; Run "sfc /scannow" and "DISM /Online /Cleanup-Image /RestoreHealth" as administrator.

Related codes

0x24 NTFS_FILE_SYSTEMA problem occurred in the NTFS file system driver, usually because of disk or file system corruption.0x50 PAGE_FAULT_IN_NONPAGED_AREAWindows tried to use memory that does not exist or is not available, often due to a driver, security software or faulty RAM.0x77 KERNEL_STACK_INPAGE_ERRORWindows could not read kernel data from the page file into memory, usually because of a disk problem or faulty RAM.0x7A KERNEL_DATA_INPAGE_ERRORWindows could not read a page of kernel data into memory, usually because of a disk, cable or RAM problem.0xED UNMOUNTABLE_BOOT_VOLUMEWindows could not mount the startup drive.0xF4 CRITICAL_OBJECT_TERMINATIONA process or thread essential to Windows ended unexpectedly.0x133 DPC_WATCHDOG_VIOLATIONA driver or device took too long to finish its work, often a storage or SSD driver or firmware.0xA IRQL_NOT_LESS_OR_EQUALA driver or system process tried to access memory it was not allowed to use, usually because of a faulty driver.0x19 BAD_POOL_HEADERThe memory pool used by Windows has become corrupted, usually by a faulty driver.