Stop code 0x0000002E: DATA_BUS_ERROR

Updated Nov 15, 2026

Cleared for publishing after the automated checks on Nov 15, 2026.

What the code means

This typically indicates that a parity error in system memory has been detected. (Bug Check 0x2E: DATA_BUS_ERROR)

Code facts for 0x0000002E

Code as Windows shows it	0x0000002E
Type	Stop code (bug check)
Symbolic name	DATA_BUS_ERROR
Hexadecimal, 8 digits	0x0000002E
Decimal (unsigned)	46
Decimal (signed 32-bit)	46
Group	Stop codes

Read with care

A stop (bug check) code is not a Win32 or HRESULT code. Do not look it up in the Win32 error list. (Bug check code reference)

Code facts: Bug Check 0x2E: DATA_BUS_ERROR (Microsoft Learn, CC BY 4.0), checked Nov 14, 2026.

Code facts: Bug check code reference (Microsoft Learn, CC BY 4.0), checked Nov 14, 2026.

Where this error shows up

This code shows up on a blue screen, after Windows stops and restarts.

Applies to

Page states no Windows version

These steps come from a Microsoft page written for advanced users.

Try these first

These steps carry no risk flag in the data. They keep the order of the full list below, which is not reordered. A step without a flag is not a promise that it is safe for your computer.

Step 1: Hardware

3 steps to try, in order

Steps are grouped by the Microsoft page they come from. The page lists only what those pages give; other causes of 0x0000002E are not covered. 2 steps are flagged.

If this page and Microsoft's page differ, follow Microsoft's page.

Microsoft also gives general steps that cover this code: see the general steps in the stop codes group. Each block there says which codes its Microsoft page gives the steps for.

From: Bug Check 0x2E: DATA_BUS_ERROR

Source: Bug Check 0x2E: DATA_BUS_ERROR (Microsoft Learn), checked Nov 14, 2026. © Microsoft, licensed under CC BY 4.0. Steps shortened and reworded by PC Driver Update.

From Microsoft's bug check page, which says it is written for programmers. Only its basic, non-debugger troubleshooting lines are used.

Hardware
Remove recently added hardware; run the maker's hardware diagnostics; check adapter cards are properly seated.
Check updates
Changes BIOS or firmware
On a newly installed system, check for BIOS, SCSI controller or network card updates.
Our advice: Back up your files first, and follow your PC maker's instructions for BIOS or firmware settings and updates. How to: Windows recovery environment
Disk check
Changes disks
Run Chkdsk /f /r on the system partition; you must restart the system before the disk scan begins.
Page warning: always use the version of Chkdsk that matches your Windows version (MS-DOS based disk tools can damage long file names on a FAT system partition).
Microsoft advises: Back up your personal files before you try these fixes. (Back up and restore with Windows Backup)

Stop and get help

If these steps do not fix the problem, or you are not sure about a step, stop and get help from Microsoft Support or from the maker of your PC. Stop at once if the data on this computer is at risk: back up your files first, or ask a professional before you go on.

Dates and review

Automated checks	first check: Nov 14, 2026; second check: Nov 14, 2026; third check: Nov 14, 2026; fourth check: Nov 14, 2026
Microsoft pages read	Troubleshooting Windows unexpected restarts and stop code errors: read Nov 14, 2026, the Microsoft page is dated Jul 28, 2026 Bug Check 0x2E: DATA_BUS_ERROR: read Nov 14, 2026, the Microsoft page is dated May 23, 2017 Bug check code reference: read Nov 14, 2026, the Microsoft page is dated Jul 15, 2025
Review status	Cleared for publishing after the automated checks on Nov 15, 2026.