Windows BSOD Error 0x000001C7 — STORE_DATA_STRUCTURE_CORRUPTION

What Does This Error Mean?

Blue screen 0x000001C7 (STORE_DATA_STRUCTURE_CORRUPTION) means Windows found corrupted data in its memory management system. The memory manager detected that internal data structures have become invalid. This is commonly caused by faulty RAM, a corrupted page file, or driver-level memory corruption.

Affected Models

Windows 10
Windows 11

Common Causes

One or more RAM modules have developed hardware faults causing memory read/write errors
A faulty device driver is writing incorrect data to memory management structures
The Windows page file (virtual memory) has become corrupted on disk
Overclocked RAM running at unstable speeds causes memory errors
Hard drive or SSD is developing bad sectors that store corrupted Windows memory data

How to Fix It

Run Windows Memory Diagnostic: press Win + R, type mdsched.exe, and press Enter. Select 'Restart now and check for problems'.

The diagnostic runs automatically on reboot. After Windows loads again, check Event Viewer for the results under Windows Logs > System.
If memory tests pass, check the storage drive. Open Command Prompt as Administrator and run: chkdsk C: /f /r

CHKDSK scans the drive for bad sectors and file system errors. It runs on next reboot. Let it complete fully — do not interrupt it.
Reset the Windows page file: right-click This PC > Properties > Advanced System Settings > Advanced > Performance > Settings > Advanced > Change. Uncheck 'Automatically manage', select 'No paging file', OK. Restart, then re-enable 'Automatically manage'.

This clears and recreates the page file, removing any corruption.
If you have overclocked your RAM, revert the RAM to its default (JEDEC) speed in BIOS.

Open BIOS settings at startup (usually Del or F2 key) and look for XMP or DOCP settings. Disable them to run RAM at stock speed.
Run SFC and DISM to repair any corrupted Windows system files: open Command Prompt as Administrator and run sfc /scannow, then DISM /Online /Cleanup-Image /RestoreHealth.

These two commands work together to fix corrupted Windows components. SFC repairs files; DISM repairs the Windows image used to restore those files.

When to Call a Professional

If Windows Memory Diagnostic shows RAM errors, one or more RAM sticks need to be replaced. If RAM tests clean but the BSOD persists, the issue may be with the storage drive. A technician can run extended hardware tests and replace failing components.

Frequently Asked Questions

How do I know which RAM stick is bad if I have more than one?

Test each stick individually. Remove all RAM except one stick and run the memory diagnostic. If it passes, swap in the next stick and test again. The stick that causes errors when it is the only one installed is the faulty one.

Can a BSOD like 0x000001C7 corrupt my files?

A sudden crash can potentially corrupt files that were open or being written at the moment of the crash. Already-saved files are generally safe. Running CHKDSK after a crash checks for and repairs any file system inconsistencies caused by the abrupt shutdown.

Is 0x000001C7 related to the Windows Store app?

Despite the bug check name mentioning 'store', this error refers to Windows' internal memory store structures, not the Microsoft Store app. It is a low-level memory management issue, not related to downloading apps from the Microsoft Store.